contraceptive methodsstephanie b. teal
sociocultural and historical aspectsvern l. bullough
Contraception has been used worldwide since ancient times. Writings in Egyptian papyri, the Bible, and Greek and Roman texts indicate the usage of various herb and root preparations for contraception and abortion (Riddle 1992). Decisions regarding the timing of pregnancy and control over family size continue to be important issues for all adults.
An average woman in the developing world who wants four children must use effective contraception for sixteen years. The average U.S. woman who wants two children needs to effectively use contraception for twenty years to achieve her desired family size (Alan Guttmacher Institute 1999).
Worldwide, many contraceptive methods are available. Factors influencing the choice of method include availability, cost, reversibility, ease of use, cultural preferences, privacy, side effects, and medical risks. When evaluating risk, it is important to note that all available birth control methods carry lower risk of death than pregnancy, even in developed countries where maternal death rates are already low.
Patterns of use differ significantly internationally. The oral contraceptive pill accounts for 34 percent of contraceptive use in the Netherlands, but only 2 percent in Japan. The intrauterine device provides contraception for 19 percent of French women, but only 1 percent of U.S. women (Senanayake and Potts 1995). Conversely, the United States has the highest rate of female sterilization in the developed world.
Contraceptive methods have many different mechanisms of action, but may be generally grouped into hormonal or nonhormonal classes.
Hormones are the chemical messengers the body uses to control and coordinate various physical processes. The major hormones influencing the female reproductive organs are estrogen and progesterone. Manipulation of these hormones may disrupt the normal processes required for fertility, such as ovulation, transport of egg and sperm in the Fallopian tubes, thinning of cervical mucus, and preparation of the uterine lining (endometrium) for implantation. Hormonal methods of contraception must affect these processes enough to prevent fertility, without causing too many other bothersome side effects or risks.
Combination oral contraceptive pills. The combination oral contraceptive (COC) pill is a highly effective, reversible female contraceptive. It contains both estrogen and progestin (a compound that mimics natural progesterone). Taken every day for three out of four weeks, it prevents ovulation by inhibiting the secretion of two regulatory hormones from the brain's pituitary gland. The estrogen suppresses follicle stimulating hormone (FSH) and thus prevents preparation of an egg for ovulation. The main contraceptive effect, however, is from the progestin, which suppresses luteinizing hormone (LH). The lack of the LH surge prevents ovulation. The progestin also has effects on the endometrium and cervical mucus. The endometrium becomes much less favorable to implantation due to thinning. Meanwhile, the cervical mucus becomes thick, limiting sperm penetration and transport into the uterine cavity. Even if ovulation occasionally occurs, these other effects contribute to the overall high contraceptive efficacy of 98 percent (Trussell and Vaughan 1999).
The COC pill has significant noncontraceptive benefits, including reduction of menstrual blood loss, reduction of cramps, and improved regularity of the menstrual cycle. It also significantly reduces the risks of ovarian and endometrial cancer, pelvic inflammatory disease, breast cysts, and endometriosis. Both acne and excessive hair growth are improved by COC pill use.
Although the COC pill has many contraceptive and noncontraceptive benefits, it is not appropriate for everyone. Contraindications include breast cancer, severe liver disease, and uncontrolled hypertension. Blood clots in the deep veins are a rare but sometimes serious risk associated with the pill. Women who smoke are already at higher risk of blood clots and heart attack due to their cigarette usage, and smokers are discouraged from COC use. In nonsmokers, however, the pill is safe to use through the age of menopause.
Depo-Provera. Depo-Provera (depot medroxyprogesterone acetate) is a long-acting, reversible injectable contraceptive available in many countries since the late 1970s and in the United States since 1992. It results in initially high progestin levels which taper off over the following weeks. It is given as an injection every twelve to thirteen weeks. The progestin dose results in thickening of cervical mucus and thinning of the endometrium, but also is high enough to suppress ovulation, leading to a high efficacy rate of 99 percent (Trussell and Vaughan 1999). Because of the lack of estrogen with this method, a common side effect is unscheduled irregular bleeding. This usually resolves over several months, and 50 percent of women have no bleeding at all after one year of use (Kaunitz 2001). In fact, this method may be beneficial to women who are troubled by heavy, prolonged menstrual periods. Depo-Provera is also an excellent contraceptive for those who cannot use estrogen, want a private method whose timing is not related to intercourse, or do not want to take a pill every day. Because it can have a prolonged effect on a woman's return to fertility, Depo-Provera is not a good option for women planning pregnancy within the next year. It is still controversial whether it promotes weight gain: this effect has only been noted in U.S. trials of this internationally popular method (Kaunitz 2001).
Lunelle. Lunelle, an injectable monthly contraceptive, contains one-sixth the dose of medroxyprogesterone acetate as Depo-Provera, and also contains estrogen. Lunelle is given by injection every twenty-three to thirty-three days. Like Depo-Provera, the progestin in Lunelle inhibits the secretion of the hormone LH, preventing ovulation. Because of the estrogen the bothersome unscheduled bleeding of Depo-Provera is much improved. In the first ninety days of use, 57 percent of Lunelle users report variations in their bleeding patterns, compared with 91 percent of Depo-Provera users (Hall 1998). However, long-term Lunelle users tend to see normalization of their bleeding patterns, and after a year, 70 percent report normal monthly bleeding. Lunelle is highly effective. In studies conducted by the World Health Organization, over 12,000 women in nine countries were followed for a total of 100,000 woman-months use: five pregnancies occurred (Hall 1998). The formulation in Lunelle has been used in some countries for twenty years prior to FDA (Food and Drug Administration) approval in the United States.
Implantables. Several sustained-release progestin-only contraceptives have been developed to reduce the frequency of administration and decrease the high progestin levels associated with Depo-Provera. Norplant consists of six capsules filled with the progestin levonorgestrel that are placed under the skin of the upper arm. The capsules release the hormone at a constant low rate, resulting in a daily dose about 25 to 50 percent that of low-dose COCs. Unscheduled bleeding does occur, especially during the first year, but women often return to a normal menstrual pattern thereafter. Norplant may be used for up to five years.
Implanon. A single capsule system which is effective for three years, Implanon's major benefit over Norplant is the ease of insertion and removal, which can be difficult if the capsules are placed too deeply or irregularly. One of the most obvious benefits of these implants is the low demand on the contraceptive user, especially as compared to daily pill use. Efficacy is also extremely high, with a failure rate of less than 1 percent per year.
Progestin Intrauterine Device. Widely used in Europe, the progestin intrauterine device (IUD) is a low-maintenance method that has high efficacy, rapid reversibility, and reduction of menstrual blood loss. The Mirena progestin IUD is a small, T-shaped flexible plastic device that slowly releases levonorgestrel contained in the long stem of the T. The contraceptive effect is primarily from the thickening of cervical mucus and alteration of sperm motility and function. Although ovulation is not usually inhibited, the failure rate is only 0.14 percent. After placement, the progestin IUD may be left in place up to five years, or removed when pregnancy is desired.
Nonhormonal methods rely on prevention of contact of the egg and sperm. Many nonhormonal methods require implementation around the time of intercourse, or place restrictions on when or how intercourse may occur, whereas others require little maintenance. Because of this, these methods have a much wider range of contraceptive failure than the hormonal methods, ranging from as high as 25 percent for withdrawal and natural family planning, to as low as 0.5 to 1 percent for the IUD and sterilization.
Intrauterine Device. The intrauterine device is a highly effective, reversible, long-acting, nonhormonal method of contraception. It is popular in Europe, Asia, and South America. Nonhormonal IUDs come in many different forms, but the most common type in the United States is the TCu-380A, also known as Paraguard. The Paraguard IUD is a small plastic "T" wrapped with copper. It exerts its effect through several mechanisms: first, the copper significantly decreases sperm motility and lifespan, second, the IUD produces changes in the endometrium that are hostile to sperm. The IUD does not affect ovulation, nor does it cause abortions. The overall failure rate of the IUD is less than 1 percent per year, which is comparable to female sterilization (Meirik et al. 2001). After removal, a woman can become pregnant immediately. Despite its benefits, its popularity in the United States waned in the mid-1970s due to a rash of litigation related to reports of increased pelvic infection and infertility related to its use. Later studies largely refuted these concerns, but the bad publicity has lingered (Hubacher et al. 2001). Although slowly increasing, U.S. use rate of the IUD still lags far behind the rest of the world.
Condom: male and female. The male condom is a sheath of latex or polyurethane that is placed over the penis prior to intercourse as a barrier to sperm. It is inexpensive, readily available, and has the added health benefit of providing protection against sexually transmitted diseases, including HIV. Condoms may also be lubricated with a spermicide.
The female condom is a polyurethane sheath with two rings attached, which is placed in the vagina prior to intercourse. In clinical trials it has had high patient acceptance, and has the benefit of being a woman-controlled method of sexually transmitted disease protection. Couples should not use both a male and a female condom during an act of intercourse, as this increases the risk of breakage. The failure rate of condoms is 12 to 20 percent (Fu et al. 1999).
Diaphragm. The diaphragm is a rubber cupshaped device which is filled with spermicide and inserted into the vagina, creating a barrier in front of the cervix. Like the condom, the efficacy rate of the diaphragm is dependent on the user, but ranges from 80 to 90 percent. The diaphragm does provide some protection against gonorrhea and pelvic inflammatory disease, but has not been shown to reduce transmission of HIV or other viral sexually transmitted infections. Although it must be obtained by prescription, a diaphragm is relatively inexpensive, and with proper care lasts for several years. It may be combined with condom use for greater contraceptive efficacy and disease prevention.
Withdrawal. Also known as coitus interruptus, withdrawal requires the male partner to remove his penis from the woman's vagina prior to ejaculation. Although theoretically sperm should not enter the vagina and fertilization should be prevented, this method has a failure rate of up to 25 percent in typical use (Trussell and Vaughan 1999). Withdrawal is probably most useful as a back-up method for couples using, for example, periodic abstinence.
Natural family planning. Periodic abstinence, also known as natural family planning, depends on determining safe periods when conception is less likely, and using this information to avoid pregnancy. The various methods of natural family planning include the calendar, thermal shift, symptothermal, and cervical mucus methods. All of these methods require training in the recognition of the fertile phase of the menstrual cycle, as well as a mature commitment by both partners to abstain from intercourse during this time. If the woman does not have a predictable menstrual cycle, some of these methods are more difficult to use effectively. Although with perfect use the failure rate could be as low as 5 percent, actual failure rates are closer to 25 percent and above (Fu et al. 1999; Trussell and Vaughan 1999).
Female sterilization. Female sterilization is the most common method of birth control for married couples in the United States. The technique is performed surgically, through one or two incisions in the abdomen. The Fallopian tubes may be tied, cut, burnt, banded with rings, or blocked with clips. Sterilization should be considered final and irreversible, although expensive microsurgery can sometimes repair the tube enough to allow pregnancy. Some couples assume that because this method is irreversible, it has a perfect efficacy rate, but this is not true. Each method has a slightly different rate of failure or complication, but the overall failure rate for female sterilization is about 1 percent (Peterson et al. 1996). The failure rate of sterilization is also dependent on the age of the patient, with younger patients more likely to experience an unplanned pregnancy up to ten years after the procedure. Younger patients are also more likely to experience regret in the years following sterilization.
Male sterilization. Male sterilization (vasectomy) is also a highly effective, permanent method of contraception. It is accomplished by making a small hole on either side of the scrotum and tying off the spermatic cord which transports sperm into the semen just prior to ejaculation. Compared to female sterilization, it is less expensive, more effective, easier to do with less surgical risk, and is easier to reverse if necessary. Vasectomy has no effect on male sexual function, including erectile function, ejaculation, volume of semen, or sexual pleasure. However, vasectomy rates consistently lag far behind those of female sterilization in all parts of the world, due mainly to cultural factors.
Emergency contraception, also known as post-coital contraception, includes any method that acts after intercourse to prevent pregnancy. The Yuzpe method uses COC pills to deliver two large doses of hormones, twelve hours apart. These must be taken within seventy-two hours of the unprotected intercourse to be effective. A prepackaged emergency contraceptive kit called Preven is also available. The kit contains a pregnancy test, instructions, and two pills with the appropriate doses of estrogen and progestin. Studies show a pregnancy rate of 3.2 percent for the cycle in which the woman took the emergency contraception, which is a 75 percent reduction of the 8 percent expected pregnancy rate per unprotected cycle (Ho 2000). The main side effects are nausea and possibly vomiting from the high dose of estrogen. Emergency contraception using a special progestin-only pill containing levonorgestrel avoids this side effect. It is marketed as Plan B. A study of 967 women using Plan B showed a pregnancy rate of 1.1 percent, or an 85 percent reduction. Both methods cause a 95 percent reduction in the risk of pregnancy if taken within the first twelve hours after unprotected intercourse (Nelson et al. 2000). The mechanism of action of the hormonal pills is probably the prevention of ovulation, with some contribution of changes in the endometrium. They do not cause abortion.
Control of family size is an important consideration for all adults, in every country. Many different contraceptive methods exist, and no single method is appropriate for all couples. When choosing a contraceptive method, factors such as effectiveness, reversibility, side effects, privacy, cost, and cultural preferences should be considered.
See also:Abortion; Abstinence; Assisted Reproductive Technologies; Birth Control: Sociocultural and Historical Aspects; Childlessness; Family Life Education; Family Planning; Fertility; Infanticide; Sexuality Education
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stephanie b. teal
SOCIOCULTURAL AND HISTORICAL ASPECTS
Birth control (a term popularized by Margaret Sanger, 1876–1966) refers to control over and decisions about the timing and number of births that a woman or couple has; it is a part of family planning and includes more than contraception.
People have used various forms of birth control throughout history, including abstinence (both short-term and, for some individuals, lifetime continence), abortion (abortifacients are common in both historical and oral sources), infanticide (disposing of unwanted infants), and surgical intervention (ranging from castration to creating a hypospadias condition in the male by making an exit for sperm and urine at the base of the penis). Forms of contraception have ranged from "natural" means, such as withdrawal or use of other orifices, to a variety of mechanical means including intrauterine devices (IUDs) and various barriers such as the condom or vaginal inserts.
Historically, however, birth control was not a general matter for public discourse. Although various medical writers described methods, some more effective than others, and theologians took conflicting stands about non-procreative sexual activities, most of the information was passed on informally among women themselves, some of it more accurate than others. Historians believe that the first really measurable efforts toward some form of fertility control, probably coitus interruptus, took place in France in the eighteenth century. Full scale debate on the issue, however, did not take place until the nineteenth century.
Widespread Public Discussion
Key to the emerging public discussion about birth control was concern with overpopulation, and only later did the feminist issue of right to plan families emerge. The population issue was first put before the public by the Reverend Thomas Robert Malthus (1766–1834) in his Essay on the Principle of Population (1708). The first edition was published anonymously, but Malthus signed his name to the second, expanded edition published in 1803. Malthus believed that human beings were possessed by a sexual urge that led them to multiply faster than their food supply, and unless some checks could somehow be applied, the inevitable results of such unlimited procreation were misery, war, and vice. Population, he argued, increased geometrically (1, 2, 4, 8, 16, 32 . . .) whereas food supply only increased arithmetically (1, 2, 3, 4, 5, 6, . . .) Malthus's only solution was to urge humans to exercise control over their sexual instincts (i.e., to abstain from sex except within marriage) and to marry as late as possible. Sexually, Malthus was an extreme conservative who went so far as to classify as vice all promiscuous intercourse, "unnatural" passions, violations of the marriage bed, use of mechanical contraceptives, and irregular sexual liaisons.
Many of those who agreed with Malthus about the threat of overpopulation disagreed with him on the solutions and instead advocated the use of contraceptives. Those who did so came to be known as neo-Malthusians. Much of the debate over birth control, however, came to be centered on attitudes toward sexuality. Malthus recognized the need of sexual activity for procreation but not for pleasure. The neo-Malthusians held that continence or abstinence was no solution because sex urges were too powerful and nonprocreative sex was as pleasurable as procreative sex.
To overcome the lack of public information about contraception, the neo-Malthusians felt it was essential to spread information about the methods of contraception. The person in the English speaking world generally given credit for first doing so was the English tailor, Francis Place (1771–1854). Place was concerned with the widespread poverty of his time, a poverty accentuated by the growth of industrialization and urbanization as well as the breakdown of the traditional village economy. Large families, he felt, were more likely to live in poverty than smaller ones, and to help overcome this state affairs, Place published in 1882 his Illustrations and Proofs of the Principle of Population. He urged married couples (not unmarried lovers) to use "precautionary" means to plan their families better, but he did not go into detail. To remedy this lack of instruction, he printed hand-bills in 1823 addressed simply To the Married of Both Sexes. In it he advocated the use of a dampened sponge which was to be inserted in the vagina with a string attached to it prior to "coition" as an effective method of birth control. Later pamphlets by Place and those who followed him added other methods, all involving the female. Pamphlets of the time, by Place and others, were never subject to any legal interference, although they were brought to the attention of the attorney general who did not take any action. Place ultimately turned to other issues, but his disciples, notably Richard Carlile (1790–1843), took up the cause. It became an increasingly controversial subject in part because Place and Carlile were social reformers as well as advocates of birth control. Carlile was the first man in England to put his name to a book devoted to the subject, Every Woman's Book (1826).
Early U.S. Birth Control Movement
In the United States, the movement for birth control may be said to have begun in 1831 with publication by Robert Dale Owen (1801–1877) of the booklet Moral Physiology. Following the model of Carlile, Owen advocated three methods of birth control, with coitus interruptus being his first choice. His second alternative was the vaginal sponge, and the third the condom. Ultimately far more influential was a Massachusetts physician, Charles Knowlton (1800–1850) who published his Fruits of Philosophy in 1832. In his first edition, Knowlton advocated a policy of douching, a not particularly effective contraceptive, but it was the controversy the book caused rather than its recommendation for which it is remembered. As he lectured on the topic through Massachusetts, he was jailed in Cambridge, fined in Taunton, and twice acquitted in trials in Greenfield. These actions increased public interest in contraception, and Knowlton had sold some 10,000 copies of his book by 1839. In subsequent editions of his book, Knowlton added other more reliable methods of contraception.
Once the barriers to publications describing methods of contraception had fallen, a number of other books appeared throughout the English-speaking world. The most widely read material was probably the brief descriptions included in Elements of Social Science (1854), a sex education book written by George Drysdale (1825–1901). Drysdale was convinced that the only cause of poverty was overpopulation, a concept that his more radical freethinking rivals did not fully accept. They were more interested in reforming society by eliminating the grosser inequities, and for them contraception was just one among many changes for which they campaigned.
Influence of Eugenics
Giving a further impetus to the more conservative voices in the birth control movement was the growth of the eugenics movement. The eugenicists, while concerned with the high birthrates among the poor and the illiterate, emphasized the problem of low birthrates among the more "intellectual" upper classes. Eugenics came to be defined as an applied biological science concerned with increasing the proportion of persons of better than average intellectual endowment in succeeding generations. The eugenicists threw themselves into the campaign for birth control among the poor and illiterate, while urging the "gifted" to produce more. The word eugenics had been coined by Francis Galton (1822–1911), a great believer in heredity, who also had many of the prejudices of an upper-class English gentleman in regard to social class and race. Galton's hypotheses were given further "academic" respectability by Karl Pearson (1857–1936), the first holder of the Galton endowed chair of eugenics at the University of London. Pearson believed that the high birthrate of the poor was a threat to civilization, and if members of the "higher" races did not make it their duty to reproduce, they would be supplanted in time by the members of the "lower races."
When put in this harsh light, eugenics gave "scientific" support to those who believed in racial and class superiority. It was just such ideas that Adolph Hitler attempted to implement in his "solution" to the "racial problem." Although Pearson's views were eventually opposed by the English Eugenics Society, the U.S. eugenics movement, founded in 1905, adopted his view. Inevitably, a large component of the organized family planning movement in the United States was made up of eugenicists. The fact that the Pearson-oriented eugenicists also advocated such beliefs as enforced sterilization of the "undesirables" inevitably tainted the group in which they were active even when they were not the dominant voices.
Dissemination of Information and Censorship
Population studies indicate that at least among the upper-classes in the United States and Britain, some form of population limitation was being practiced. Those active in the birth control movement, however, found it difficult to contact the people they most wanted to reach, namely the poor, overburdened mothers who did not want more children or who, in more affirmative terms, wanted to plan and space their children. The matter was complicated by the enactment of anti-pornography and anti-obscenity legislation which classed birth control information as obscene. In England, with the passage of the first laws on the subject in 1853, contraception was interpreted to be pornographic since of necessity it included discussion of sex. Books on contraception that earlier had been widely sold and distributed were seized and condemned. Such seizures were challenged in England in 1877 by Charles Bradlaugh (1833–1891) and Annie Besant (1847–1933). Bradlaugh and Besant were convicted by a jury that really wanted to acquit them, but the judgement was overturned on a technicality. In the aftermath, information on contraception circulated widely in Great Britain and its colonies.
In the United States, however, where similar legislation was enacted by various states and by the federal government, materials that contained information about birth control and that were distributed through the postal system or entered the country through customs ran into the censoring activities of Anthony Comstock (1844–1915) who had been appointed as a special postal agent in 1873. One of his first successful prosecutions was against a pamphlet on contraception by Edward Bliss Foote (1829–1906). As a result, information about contraceptives was driven underground, although since state regulations varied some states were more receptive to information about birth control. Only those people who went to Europe regularly kept up with contemporary developments such as the diaphragm, which began to be prescribed in Dutch clinics at the end of the nineteenth century. The few physicians who did keep current in the field tended to restrict their services to upper-class groups. The dominant voice of the physicians in the increasingly powerful American Medical Association was opposed to the use of contraceptives and considered them immoral. That this situation changed is generally credited to Sanger, a nurse.
In 1914, Sanger, then an active socialist, began to publish The Woman Rebel, a magazine designed to stimulate working women to think for themselves and to free themselves from bearing unwanted children. To educate women about the possibilities of birth control, Sanger decided to defy the laws pertaining to the dissemination of contraceptive information by publishing a small pamphlet, Family Limitation (1914), for which she was arrested. Before her formal trial, she fled to England, where she spent much of her time learning about European contraceptive methods, including the diaphragm. While she was absent her husband, William Sanger (1873–1961), who had little to do with his wife's publishing activities, was tricked into giving a copy of the pamphlet to a Comstock agent, and for this was arrested and convicted, an act that led to the almost immediate return of his wife. Before she was brought to trial, however, Comstock died. The zealousness of his methods had so alienated many prominent people that the government—without Comstock pushing for a conviction—simply decided not to prosecute Sanger, a decision which received widespread public support.
In part through her efforts, by 1917 another element had been added to the forces campaigning for more effective birth control information, namely the woman's movement (or at least certain segments of it). Women soon became the most vocal advocates and campaigners for effective birth control, joining "radical" reformers and eugenicists in an uneasy coalition.
Sanger, though relieved at being freed from prosecution, was still anxious to spread the message of birth control to the working women of New York. To reach them, she opened the first U.S. birth control clinic, which was patterned after the Dutch model. Since no physician would participate with her, she opened it with two other women, Ethel Byrne, her sister and also a nurse, and Fania Mindell, a social worker. The well-publicized opening attracted long lines of interested women—as well as several vice officers—and after some ten days of disseminating information and devices, Sanger and her two colleagues were arrested. Byrne, who was tried first and sentenced to thirty days in jail, promptly went on a hunger strike, attracting so much national attention that after eleven days she was pardoned by the governor of New York. Mindell, who was also convicted, was only fined $50. By the time of Sanger's trial, the prosecution was willing to drop charges provided she would agree not to open another clinic, a request she refused. She was sentenced to thirty days in jail and immediately appealed her conviction. The New York Court of Appeals rendered a rather ambiguous decision in acquitting her, holding that it was legal to disseminate contraceptive information for the "cure and prevention of disease," although they failed to specify the disease. Sanger, interpreting unwanted pregnancy as a disease, used this legal loophole and continued her campaign unchallenged.
New York, however, was just one state; there were many state laws to be overcome before information about contraceptives could be widely disseminated. Even after the legal barriers began to fall, the policies of many agencies made it difficult to distribute information. Volunteer birth control clinics were often prevented from publicly advertising their existence. It was not until 1965 that the U.S. Supreme Court, in Griswold v. Connecticut, removed the obstacle to the dissemination of contraceptive information to married women. It took several more years before dissemination of information to unmarried women was legal in every state.
In Europe, the battle, led by the Netherlands, for the dissemination of information about birth control methods took place during the first half of the twentieth century. It was not until after World War II when, under Sanger's leadership, the International Federation for Planned Parenthood was organized, that a worldwide campaign to spread the message took place. At the beginning of the twenty-first century two major countries, Japan and Russia, still used abortion as a major means of family planning. In many countries, more than 60 percent of women of childbearing age are using modern contraceptives, including Argentina, Australia, Austria, the Bahamas, Belgium, Brazil, Canada, China, Costa Rica, Cuba, Denmark, Finland, France, Hungary, Italy, Jamaica, Korea, New Zealand, Netherlands, Norway, Spain, Sweden, Switzerland, Singapore, Thailand, the United Kingdom, and the United States. Many other nations are approaching this rate of success, but much lower rates exist throughout Africa (where Tunisia seems to the highest at 49 percent), in most of the former areas of the Soviet Union and the eastern block countries, and in much of Asia and Latin America. The International Planned Parenthood Federation does periodic surveys of much of the world which are regularly updated on its website (see also Bullough 2001).
Teenagers and Birth Control
With legal obstacles for adults removed, and a variety of new contraceptives available, the remaining problems are to disseminate information and encourage people to use contraceptives for effective family planning. One of the more difficult audiences to reach has been teenagers. Many socalled family life or sex education programs refuse to deal with the issue of contraceptives and instead emphasize abstinence from sex until married. Unfortunately, abstinence—or continence as it is sometimes called—has the highest failure rate of any of the possible means of birth control since there is no protection against pregnancy if the will power for abstinence fails. The result was a significant increase in the 1990s of unmarried teenage mothers, although not of teenage mothers in general. The highest percentage of teenage mothers in the years the United States has been keeping statistics on such matters came in 1957, but the overwhelming majority of these were married women. Although the number of all teenage mothers has been declining ever since, reaching new lows in 1999–2000, an increased percentage of them are unmarried. In fact, it is the change in marriage patterns and in adoption patterns, more than the sexual activity of teenagers, that led to public concern over unmarried teenage mothers. Since societal belief patterns have increasingly frowned upon what might be called "forced marriages" of pregnant teenagers, and the welfare system itself was modified to offer support to single mothers, at least within certain limits, teenagers who earlier might have given up their children for adoption decided to keep them.
Many programs have been introduced since the federal government in 1997 created the abstinence-only-until-marriage program to teach those teenagers most at-risk to be more sexually responsible. Only a few of the programs included a component about contraceptives since the federally funded programs do not provide for it, and only a few states such as California have provided funds to do so. Most of the programs emphasize self-esteem, the need for adult responsibility, and the importance of continence, all important for teenage development, but almost all the research on the topic, summaries of which are regularly carried in issues of SIECUS Report, has found that the lack of specific mention of birth control methods has handicapped their effectiveness in curtailing teenage pregnancy. This deficiency has been somewhat compensated for by the development of more efficient and easy-to-use contraceptives and availability of information about them from other sources.
Still, although contraception and family planning increasingly have come to be part of the belief structure of the U.S. family, large segments of the population remain frightened by, unaware of, or unconvinced by discussion about birth control. Unfortunately, because much of public education about birth control for much of the twentieth century was aimed at the poor and minorities, some feel that birth control is a form of racial suicide. It takes a lot of time and much education to erase such fears and success can only come when such anxieties can be put to rest.
See also:Abortion; Abstinence; Adolescent Parenthood; Assisted Reproductive Technologies; Birth Control: Contraceptive Methods; Childlessness; Family Life Education; Family Planning; Fertility; Infanticide; Sexuality Education; Women's Movements
bullough, v. l., and bullough, b. contraception. (1997)buffalo, ny: prometheus.
bullough, v. l. (2001). encyclopedia of birth control.santa barbara, ca: abc-clio.
chandrasekhar, s. (1981). a dirty, filthy book: the writings of charles knowlton and annie besant on reproductive physiology and birth contol and an account of the bradlaugh-besant trial. berkeley and los angeles: university of california press.
fryer, p. (1965). the birth controllers. london: secker &warburg.
grossman, atina. (1995). reforming sex: the germanmovement for birth control and abortion reform. new york: oxford university press.
mclaren, angus. (1990). a history of contraception. london: blackwell.
new york university. margaret sanger papers project. new york: new york university department of history.
population information program. population reports. baltimore, md: johns hopkins university school of public health.
reed, j. (1978). from private vice to public virtue: thebirth control movement and american society since 1830. new york: basic books.
riddle, john m. (1997). eve's herbs: a history of contraception and abortion in the west. cambridge, ma: harvard university press.
solway, r. a. (1982). birth control and the populationquestion in england, 1877–1930. chapel hill: university of north carolina press.
griswold v. connecticut, 381 u.s. 479, 85 s.ct. 1678,14 l.ed.2d 510 (1965).
international planned parenthood federation. "countryprofiles." available from http://www.ippf.org/regions/country.
vern l. bullough
"Birth Control." International Encyclopedia of Marriage and Family. 2003. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3406900050.html
"Birth Control." International Encyclopedia of Marriage and Family. 2003. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3406900050.html
Human beings have sought to avoid child bearing since ancient times and have used many methods to prevent conception or to kill a developing fetus. Religious and secular authorities usually discouraged the separation of sexual intercourse from procreation because they believed that it violated natural law or deprived the state of human capital. Thus, while individuals pursued their self-interests through such practices as coitus interruptus or inducing abortion, they usually acted in flagrant violation of official standards of sexual conduct.
Falling Birth Rates and the Social Environment
The English economist and cleric Thomas Malthus brought reproductive behavior into public debates over the nature of poverty through his Essay on Population (1798). He argued that rapid population growth forced down the living standards of the working classes, whose only hope for amelioration lay in "moral restraint" or the prudent postponement of marriage. In the early nineteenth century, English labor organizer Francis Place and other champions of the poor advocated family limitation as a tool in the struggle for social justice and sometimes published descriptions of how to prevent conception. These neo-Malthusians found a growing audience during the nineteenth century as birth rates began to decline in many countries that were actively involved in the developing market economy of the Atlantic world. These secular declines in fertility resulted from the private efforts by the sexually active to avoid pregnancy and were routinely denounced by political leaders, who attempted to suppress information on fertility control techniques. The term birth control was coined in the June 1914 issue of The Woman Rebel, a militantly feminist journal published in New York by Margaret Sanger (1879-1966), who became the preeminent champion of reproductive autonomy for women through her campaigns to abolish the legal and social obstacles to contraceptive practice. Eventually the term birth control became a synonym for family planning and population control, but the term family planning was originally adopted by those who wished to disassociate the movement to control fertility from Sanger's feminism, and the phrase population control was largely a post–World War II movement led by social scientists and policy-making elites, who feared that rapid population growth in the non-Western world would undermine capitalist development.
The precise timing and social determinants of the demographic transition in western Europe and North America from a vital economy of high birth rates and high death rates to one of low fertility and low mortality is still much in dispute among demographers, perhaps because of class and geographical differences in motivation and behavior. While French peasants seem to have been pioneers in fertility restraint during the eighteenth century, a broad spectrum of native-born Protestants in the United States led the turn to family limitation during the nineteenth century. In the United States the average native-born white woman bore seven or eight children in the late eighteenth century, but by the middle of the nineteenth century she was the mother of five, by the early twentieth century the mother of three, and by the middle of the Great Depression of the 1930s the mother of two. One of the remarkable aspects of the American demographic transition is that there were no sustained declines in infant mortality before 1900. Several generations of American women had fewer children than their mothers despite high infant mortality and vigorous attempts by social leaders to encourage higher fertility.
The fertility decline is best understood as a response to a changing social environment. As the home ceased to be a unit of production, and as the manufacture of clothing and other goods moved to factories, children no longer provided necessary labor in the family economies of the emerging middle and white-collar classes. Rather, they became expensive investments, requiring education, capital, and an abundance of "Christian nurture" from mothers who measured respectability by the ability to stay home and efficiently manage the income won by their husbands in a separate, public sphere of work. Marriage manuals, some containing instructions for contraception, were prominent among the self-help books that became a staple of American culture after 1830. Romantic love became the rationale for marriage and religious leaders gave new prominence to the erotic bonds between husbands and wives. Thus, socially ambitious married couples bore the burden of reconciling sexual passion with a manageable number of children, whose socialization required more expensive and permissive nurture.
Historians now attribute the fertility decline to restrictive practices–contraception, abortion, and abstention from coitus–rather than biological changes or shifts in the percentage of individuals who married or their age at marriage. The efforts by individuals to control their fertility for personal reasons inspired the first self-conscious attempts to suppress birth control. Between 1840 and 1870, leaders of the medical profession organized successful campaigns to criminalize abortion through new state laws. The culmination of the campaigns against abortion in state legislatures coincided with the passage of the Comstock Act (1873) a strengthened national obscenity law in which no distinctions were made between smut, abortifacients, or contraceptives–all were prohibited.
During this period of legislative repression of contraception, Catholic theologians debated the moral implications of claims by experimental physiologists that there might be a naturally occurring sterile period in the female menstrual cycle. Church authorities quietly accepted the legitimacy of limiting coitus to periods of natural sterility, but the effectiveness of this "rhythm method" proved limited, and the Church's ancient prohibition on "artificial" contraception was reaffirmed by Pius XI in the encyclical Casti Connubi (December 1930).
By the second decade of the twentieth century women in both Great Britain and the United States had begun to challenge the taboos on fertility control. Margaret Sanger won her place as the charismatic leader of the birth-control movement in the United States through her ability to develop a compelling rationale for the acceptance of contraception as an alternative to illegal abortion, since an appalling number of women died from septic abortions. Although she was influenced by the anarchist Emma Goldman and by trips to Europe, during which she was impressed by the sexual know-how of ordinary French women and by the birth-control advice stations operated by feminist physicians in the Netherlands, Sanger claimed that the death of one of her nursing clients from a self-induced abortion led her to focus all her energy on the single cause of reproductive autonomy for women. Sanger opened the first birth-control clinic in the United States in October 1916, in the Brownsville section of Brooklyn, New York. A police raid closed the clinic after ten days, but Sanger's trial and brief imprisonment made her a national figure, and in appealing her case she won a 1919 clarification of the New York State obscenity law that established the right of doctors to provide women with contraceptive advice for "the cure and prevention of disease."
Sanger interpreted this decision as a mandate for doctor-staffed birth-control clinics. Spurred by the emergence of an English rival, Marie Stopes, who opened a birth-control clinic in London in 1921, Sanger played down her radical past and found financial angels whose support allowed her to organize the American Birth Control League in 1921 and the Birth Control Clinical Research Bureau in New York City in 1923. The first doctor-staffed birth-control clinic in the United States, it provided case histories that demonstrated the safety and effectiveness of contraceptive practice and served as a model for a nationwide network of over 300 birth-control clinics by the late 1930s. In 1936 Sanger won an important revision in federal law with U.S. v. One Package (1936), which established the right of physicians to receive contraceptive materials. In 1937 the American Medical Association recognized contraception as an ethical medical service.
On the eve of World War II, the limits of the birth-control movement seemed to have been realized. A majority of Americans practiced some form of fertility control, but there was widespread concern about the low birth rate and little support for public subsidy of the services. Many social leaders were disturbed by the more permissive standards of sexual behavior that emerged during the first decades of the twentieth century as young women became increasingly visible as wage earners and as participants in an eroticized consumer culture. Alfred Kinsey and other pioneers in the survey of sexual behavior documented increases in premarital sexual activity that convinced some social conservatives that sexual liberation had gone too far. After World War II, however, influential social scientists such as Frank Notestein of Princeton University's Center for Population Research provided a new rationale for birth control by drawing attention to rapid population growth in the Third World and by arguing that the United States risked losing the Cold War because economic development compatible with capitalism might be impossible if the means were not found to curb birth rates.
Birth Control after World War II
John D. Rockefeller III became the leader of a revived movement to promote population control by founding the Population Council in 1952, after he failed to convince the directors of the Rockefeller Foundation that his interests warranted major new initiatives. The Population Council subsidized the development of academic demographic research in the United States and foreign universities and by the late 1950s was providing technical assistance to India and Pakistan for family planning programs. Concerned over the failure rates of the conventional barrier contraceptives such as condoms and diaphragms, the council invested in the clinical testing, improvement, and statistical evaluation of intrauterine devices (IUDs), that is, objects placed in the uterus to invoke an immune response that inhibits conception. A second major advance in contraceptive technology came with the marketing of an oral contraceptive by J. D. Searle and Company in 1960. "The pill" depended on recent advances in steroid chemistry, which provided orally active, and inexpensive, synthetic hormones. Margaret Sanger ensured that these new drugs would be exploited for birth control by recruiting Gregory Pincus of the Worcester Foundation for Experimental Biology for the work and introducing him to a feminist colleague, Katharine Dexter McCormick, who provided the funds Pincus needed to realize their dream of a female-controlled form of birth control that did not require specific preparation before sexual intercourse and thus made spontaneous sexual activity possible. The pill's rapid acceptance by the medical community and its female clients was enhanced by the growing use of synthetic hormones to treat a wide range of gynecological disorders so that contraception now appeared to be divorced from the "messy gadgets" of the past and was place in the context of modern therapeutics. In 1963 the Roman Catholic gynecologist John Rock, who had led the clinical trials of the first oral contraceptive, proclaimed, in The Time Has Come, that contraception was, thanks to the pill, now compatible with Catholic natural law theology. Rock's optimism proved false when Pope Paul VI's encyclical Humanae Vitae (July 1968) confirmed traditional teachings that prohibited artificial contracerpition, but by then a majority of married Catholics in the United States were practicing birth control.
A series of federal court decisions and new welfare policies reflected the changed status of birth control in public opinion. In 1965 the U.S. Supreme Court, in Griswold v. Connecticut, struck down a statute that prohibited contraceptive practice. The court continued to expand the rights of individuals to defy outdated restrictions in Eisenstadt v. Baird, (1972), which established the right of the unmarried to contraceptives. As President Lyndon Johnson's War on Poverty emerged from Congress, the Social Security Amendments of 1967 specified that at least 6 percent of expanding maternal and child health care funds were to be spent on family planning services. The Foreign Assistance Act of the same year provided aid for international programs, and contraceptives were removed from the list of materials that could not be purchased with Agency for International Development funds.
By the late 1960s feminists and population control advocates were successfully challenging state laws that limited access to abortion. In 1973 the U.S. Supreme Court attempted to forge a new consensus in Roe v. Wade, which recognized the right of abortion on demand during the first trimester of pregnancy. The Court's decision simply added fuel to an escalating firestorm of controversy as Roman Catholic leaders found common cause with Protestant fundamentalists and social conservative critics of the welfare state in a "right-to-life" and "family values" movement. From the left, groups such as the Committee to End Sterilization Abuse (founded in 1974) charged that minority women were being coerced by government maternal health programs that they viewed as genocidal. Revelations that disproportionate numbers of Hispanic and African-American women were sterilized in government programs that lacked adequate ethical guidelines supported complaints by such organizations as the National Women's Health Movement and the International Women's Health Coalition that the American health-care establishment had gone radically wrong in its high-tech, top-down, paternalistic approach to reproductive health issues.
At the 1974 United Nations World Population Conference, held in Bucharest, Rumania, John D. Rockefeller III recognized the criticisms of conventional family planning programs that had been mounted by feminists and the Population Council was reorganized to emphasize holistic approaches to women's health issues. New ethical guidelines were developed for federally sponsored maternal health programs as well, but deep social divisions remained between "pro-choice" and "pro-life" advocates, with the Democratic Party embracing the former and the Republican Party embracing the latter. Despite numerous challenges in state and federal courts and legislatures, Roe v. Wade remained the law of the land. In the late 1990s federal and state expenditures for subsidized family planning, including contraception, sterilization, and therapeutic abortion, exceeded $700 million annually, while the birth rate among the native-born was below the level needed to maintain the population, which continued to grow because of liberal immigration laws and mass immigration to the United States.
The birth rate was even lower in Europe, where in countries such as Spain and Italy reproduction was not at a rate high enough to maintain their populations. In many other parts of the world, including China, India, and the Middle East, previously high birth rates were also in decline.
See also: Conception and Birth; Eugenics; Fertility Rates; Obstetrics and Midwifery; Sexuality.
Brodie, Janet Farrell. 1994. Contraception and Abortion in Nineteenth-Century America. Ithaca, NY: Cornell University Press.
Chesler, Ellen. 1992. Woman of Valor: Margaret Sanger and the Birth Control Movement in America. New York: Simon and Schuster.
Critchlow, Donald T. 1999. Intended Consequences: Birth Control, Abortion, and the Federal Government in Modern America. New York: Oxford University Press.
Critchlow, Donald T., ed. 1996. The Politics of Abortion and Birth Control in Historical Perspective. University Park: Pennsylvania State University Press.
Dixon-Mueller, Ruth. 1993. Population Policy and Women's Rights: Transforming Reproductive Choice. New York: Praeger.
Garrow, David J. 1994. Liberty and Sexuality: The Right to Privacy and the Making of Roe v. Wade. New York: Macmillan.
Gordon, Linda. 1990. Woman's Body, Woman's Right: A Social History of Birth Control in America. New York: Grossman. 1976. Revised, New York: Penguin.
Hull, N. E. H., and Peter C. Hoffer. 2001. Roe v. Wade: The Abortion Rights Controversy in American History. Lawrence: University Press of Kansas.
McCann, Carole R. 1994. Birth Control Politics in the United States, 1916-1945. Ithaca, NY: Cornell University Press.
McLaren, Angus. 1990. A History of Contraception: From Antiquity to the Present Day. Cambridge, MA: Blackwell.
Mohr, James C. 1988. Abortion in America: The Origins and Evolution of National Policy, 1800-1900. New York: Oxford University Press.
Reagan, Leslie J. 1997. When Abortion Was a Crime: Women, Medicine, and Law in the United States, 1867-1973. Berkeley: University of California Press.
Reed, James. 1984. The Birth Control Movement and American Society: From Private Vice to Public Virtue. New York: Basic Books. 1978. From Private Vice to Public Virtue: The Birth Control Movement and American Society since 1830. Reprint, Princeton NJ: Princeton University Press.
Tone, Andrea. 2001. Devices and Desires: A History of Contraceptives in America. New York: Hill and Wang.
James W. Reed
REED, JAMES W.. "Birth Control." Encyclopedia of Children and Childhood in History and Society. 2004. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3402800063.html
REED, JAMES W.. "Birth Control." Encyclopedia of Children and Childhood in History and Society. 2004. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3402800063.html
Control or regulation of conception and birth, either to limit population growth, to increase births among particular populations, or to enable conception through medical intervention.
The terms birth control and family planning (in the sense of limiting births) and the concept of population reduction are controversial in the Middle East. Population, its growth, reduction, and control are at the heart of some of the region's most volatile political conflicts, such as the Arab–Israel conflict and the civil war in Lebanon, a country founded on the notion of proportional power-sharing between Christians and Muslims. Issues related to birth control and contraception also serve as lightning rods for some of the sharper social, cultural, and ideological controversies in the contemporary Middle East, particularly those centering on secular versus religious modes of organization and frames of meaning, women's rights, and the tension between individual and collective rights. In attempting to alter, influence, or control the literal and figurative reproduction of the family as the region's basic social institution and moral structure, birth-control policies straddle political, moral, and religious fault lines, highlighting contending sources of authority and revealing ongoing challenges of national integration and identity in the region.
Advocated by the state and international organizations, birth-reduction campaigns usually target impoverished, powerless, and marginalized groups, thus drawing attention to long-standing socioeconomic inequalities and class-based tensions in major cities such as Cairo, Tehran, and Istanbul. But birth control is not only imposed from above or beyond the contemporary Middle East—it is also chosen in increasing numbers by those living in the region as part of a larger trend toward claiming rights, taking control of personal health and the body, and domestic decision making and financial planning for families' futures. As a facet of projects designed to ensure women's increasing agency in and control over their own lives, birth control has drawn the attention and earned the censure of conservative religious authorities, be they Christian, Muslim, or Jewish.
Manipulating Population Growth
Population growth results from increased birth rates and falling mortality rates, as well as migration. In the major cities of the Middle East, rapid urbanization and dramatic population increases have been a common feature of the last sixty years. Most countries in the region have just attained, or soon will attain, the demographic transition—the stage at which birth rates slow down to replacement levels, death rates having dropped earlier. Rapid population increases in the Middle East have affected patterns of urbanization, labor, and immigration, and have often strained the provision of education, health, and social services in resource-poor countries. For many, state-sponsored policies encouraging birth control symbolize interference in family matters and the negation of such traditional values as the importance of marriage and family. Women's control over their own bodies and their own fertility, afforded by birth control, conflicts with some communities' values concerning the importance of women's chastity, their role in the home, and their status as mothers and nurturers. Others view contraceptive technology as an important tool in areas ranging from national development policy to a woman's safeguarding of her health.
Although the region shares a common culture and a dominant religion (Islam), variations of geography and resource allocation have generated different policy responses to population growth. Whereas some countries seek to limit their populations, others seek to increase theirs. Egypt, Iran, Turkey, Tunisia, Lebanon, and Morocco, lacking a sufficient resource base to support their growing and largely young populations, have supported national family-planning programs designed to reduce population growth. Saudi Arabia, Kuwait, Libya, Iraq, and the Gulf oil states, on the other hand, lack sufficient populations to supply their labor needs and have had pronatalist (probirth) policies. Israel also has a pronatalist policy for its Jewish population, and actively encourages Jewish women to have many children. This policy, however, does not extend to Israel's Arab citizens, who, representing 20 percent of Israel's population, have a higher birth rate and a younger median age than do Israeli Jews. Assisted conception and infertility treatments in Israel are the most advanced in the region, and state subsidies render these services affordable for all Israeli citizens, Arabs and Jews alike.
Overall, the rapid growth of population in the Middle East is a matter of concern within as well as beyond the region. In 1993 the population of the Middle East was approximately 360 million; by 2025 it is expected to reach 700 million. The region's population is young: 41 percent are under 15 years of age. Fears that resources, particularly water, may not stretch to support populations have prompted many governments to make contraceptive use an integral part of their public-health programs and to mount campaigns to encourage the use of family-planning techniques and mechanisms. Yet, women's fertility rates are often influenced more by educational levels and employment than by access to birth-control pills, intrauterine devices, or condoms. Women's status and life possibilities greatly shape their reproductive behavior; women who complete high school and college tend to marry later, and thus give birth to fewer children. Trends toward later marriage in most countries of the region (with the exception of the Occupied Palestinian territories, Yemen, and Oman) should translate into lower birth rates in the coming decades.
Demographic evidence suggests that disease, poverty, and warfare combined to keep population figures relatively even and stable until the beginning of the twentieth century. The population of the central Middle East (excluding North Africa) is estimated to have been around 40 million at the beginning of the twentieth century. By 1950 it had doubled to 80 million (1993, 265 million; 1999, 380 million). Explosive growth followed the end of World War II, when greater emphasis upon public sanitation and healthcare reduced the death rate while the birth rate remained high. In the early 1960s Gamal Abdel Nasser of Egypt and Habib Bourguiba of Tunisia were the first national leaders to appreciate the potentially negative relationship between unrestricted population growth and socioeconomic development, and they feared that the resulting pressure could spur political unrest. The family-planning programs they initiated encountered opposition, but since about 1970 their programs, along with those of Lebanon, Turkey, Morocco, and Iran, have achieved limited success.
Cultural, Political, and Religious Opposition to Family Planning
Opposition has come from political, military, religious, and cultural quarters. Both the culture of the Middle East and the religions of the area—Islam, Christianity, and Judaism—encourage marriage and family. The term birth control (tahdid al-nasl) is considered highly perjorative because it connotes preventing the birth of children. Less objectionable terms are tanzim al-usra and takhtit al-aʾila (family planning), which connote organization and ordering rather than the outright limitation of progeny. Nations of the Middle East have historically sought to augment their strength against enemies by increasing their numbers. To many, birth control is suspect and assumed to be another facet of Western imperialism in disguise; family-planning programs are often considered Western impositions designed to weaken the Middle East.
Political parties and nationalist groups throughout the Middle East affirm that having children constitutes a national duty in order to supply a large population base for military endeavors. Following heavy military losses at the end of the Iran–Iraq War in 1988, both Iran and Iraq emphasized pronatalist policies. Competition among Middle Eastern nations for regional prominence has led them to discourage family planning and advocate high birth rates. National, ethnic, or religious factionalism often translates into lack of support for family planning as each group seeks to enlarge its numbers. European Community governments decided in the 1990s to attack root problems of immigration from the Middle East by initiating programs supporting family planning in North Africa.
Most of the major religious traditions of the area hold that contraception is permitted. Christians are divided on its permissibility. The traditions of Judaism differ, but largely consider it permissible. Islamic jurisprudence condemns a pre-Islamic form of birth control, waʿd (exposure of female infants), but, reasoning from hadith texts, Islam does permit contraceptive use as analogous to coitus interruptus (azl). This is a personal, mutual decision of the husband and wife. Muslim opponents of contraception see it as murdering a potential creation of God and as a denial of the will (irada) and sustaining power (rizq) of God. Furthermore, Islam acknowledges the importance of and the right to sexual fulfillment for both men and women, and thus does not teach that reproduction is the sole or primary justification for marital intercourse.
The continuing importance of family in the Middle East has proved to be the largest obstacle to family planning. Because the status of both spouses, particularly the wife, depends upon the birth of children, family-planning programs have had difficulty encouraging both men and women to consider contraceptive use. One important support has been the Qurʾan's injunction to nurse children for two years, and most women appreciate the risks of becoming pregnant while nursing. The spacing of children as an important contributor to a mother's health is becoming better understood. Children have traditionally been seen as providing economic support for the family and, in the absence of social-security programs, are considered guarantors of parents' financial security in their old age. Finally, children are loved and valued as a true blessing and a gift from God in all the faith traditions and cultures of the region.
The most common methods of contraception used by women in the Middle East are birth-control pills and intrauterine devices (IUDs). Concern over sexually transmitted diseases and AIDS has led to increased use and availability of condoms. Much interest has been shown in injectable or implantable contraceptives. Nonreversible sterilization for men or women is prohibited by Islam. Tubal ligations, however, are increasingly common, and because new medical technology makes the procedure reversible, they can be considered religiously permissible. Abortion is frowned upon but permitted in particular situations, mostly those in which the mother's life is threatened. The majority of states ban abortion except when the health of the mother is endangered, at which point responsibility devolves onto the woman's doctor. Tunisia permits abortion.
Family planning and contraception in the Middle East was the subject of worldwide attention and debate at the 1994 International Conference on Population and Development (ICPD) in Cairo. That gathering, as well as the other United Nations conferences held in the 1990s—the 1995 Beijing Conference, the 1999 five-year review of the ICPD (ICPD+5), and the 2000 five-year review of the Beijing Conference (Beijing+5)—witnessed an alliance of conservative Catholic and Muslim religious authorities joining forces to oppose and restrict Middle Eastern women's right to control their own bodies and sexuality.
see also gender: gender and health; gender: gender and law; medicine and public health.
Ali, Kamram Asdar. Planning the Family in Egypt: New Bodies, New Selves. Austin: University of Texas Press, 2002.
Badran, Margot. Feminists, Islam, and Nation: Gender and the Making of Modern Egypt. Princeton, NJ: Princeton University Press, 1995.
Bayes, Jane H., and Tohidi, Nayrereh. "Introduction." In Globalization, Gender, and Religion: The Politics of Women's Rights in Catholic and Muslim Contexts, edited by Jane H. Bayes and Nayereh Tohidi. New York: Palgrave, 2001.
Ethelston, Sally. "Water and Women: The Middle East in Demographic Transition." Middle East Report 213 (Winter 1999): 6–10.
Inhorn, Marcia. Infertility and Patriarchy: The Cultural Politics of Gender and Family Life in Egypt. Philadelphia: University of Pennsylvania Press, 2002.
Inhorn, Marcia. Quest for Conception: Gender, Infertility, and Egyptian Medical Traditions. Philadelphia: University of Pennsylvania Press, 2002.
Kahn, Susan Martha. Reproducing Jews: A Cultural Account of Assisted Conception in Israel. Durham, NC: Duke University Press, 2000.
Kanaaneh, Rhoda A. Birthing the Nation: Strategies of Palestinian Women in Israel. Berkeley: University of California Press, 2002.
Musallam, Basim. Sex and Society in Islam. Cambridge, U.K.: Cambridge University Press, 1983.
Omran, Abdel-Rahim. "The Middle East Population Puzzle." Population Bulletin 48, no. 1 (July 1993): 1–40.
Omran, Abdel-Rahim. Population Problems and Prospects in the Arab World. New York: United Nations Fund for Population Activities, 1984.
Weeks, John R. "The Demography of Islamic Nations." Population Bulletin 43, no. 4 (December 1988): 1–54.
Donna Lee Bowen
Updated by Laurie King-Irani
Bowen, Donna Lee. "Birth Control." Encyclopedia of the Modern Middle East and North Africa. 2004. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3424600555.html
Bowen, Donna Lee. "Birth Control." Encyclopedia of the Modern Middle East and North Africa. 2004. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3424600555.html
Birth control, also known as contraception, is the use of physical barriers, timing, chemicals, or a combination of the three to prevent pregnancy. The vast majority of contraceptive methods are designed for use by women. No method except abstinence (not engaging in sexual intercourse) is guaranteed to be completely effective. Used according to directions, however, most modern birth control methods are safe and effective.
Pregnancy prevention methods have existed in some form through-out history. The methods employed have varied widely, with the religion, culture, and scientific sophistication of each society helping to determine the types of birth control used. In the twentieth century, birth control advocates such as Dr. Marie Stopes (1880-1958) in the United Kingdom and Margaret Sanger (1879-1966) in the United States fought prevailing religious and cultural taboos in order to provide information and supplies to anyone who wanted them.
Surgical Birth Control Procedures
Female tubal ligation ("tying the tubes") involves cutting the fallopian tubes (either one of two slender tubes that carry eggs from the ovaries to the uterus), and burning, clipping, or banding the severed ends. Since fertilization of the egg takes place in the fallopian tubes, a tubal ligation prevents pregnancy from occurring. Tubal ligation can usually be performed as outpatient (short-term recovery) surgery and is sometimes performed as an immediate postpartum tubal ligation (in the period of time just after a woman has given birth).
Male vasectomy involves severing the vas deferens, the two tubes that transport sperm from the testes to the ejaculatory duct. Since semen thereafter contains no sperm, impregnation cannot occur. A vasectomy is also an outpatient procedure. Some questions have been raised about the procedure's long-term health effects, but the prevailing medical opinion is that vasectomy is unlikely to cause any health problems. Both tubal ligation and vasectomy can be reversed in some cases but generally are considered permanent.
Oral Contraceptives ("The Pill")
Birth control pills contain various amounts of the female hormones estrogen and progesterone that mimic the natural condition of pregnancy, when a woman normally cannot become pregnant. The first contraceptive pill was developed in Massachusetts by endocrinologist Gregory Pincus (1903-1967), biologist Min-Chueh Chang (1908-), and physician John Rock (1890-1984). The pill contained progestin, a synthetic progesterone developed in Mexico by American chemist Carl Djerassi (1923-). In 1960 it was approved by the U.S. Food and Drug Administration (FDA) and first became available by prescription under the name Enovid (produced by G.D. Searle & Company.)
Though questions have arisen about their long-term safety and possible links to certain forms of cancer, oral contraceptives are considered appropriate for many women when used under medical supervision. They are the most popular form of contraception and are used by 28 percent of women of childbearing age. Also contributing to their popularity is their high rate of effectiveness.
Long-Lasting Hormonal Contraceptives
Norplant, produced by Wyeth-Ayerst Laboratories, is a device containing a form of progesterone in six tubes the size of matchsticks. These tubes are surgically implanted under the skin. The tubes prevent pregnancy by gradually releasing progesterone over five years. Norplant was approved by the FDA in 1990, though questions have been raised about possible links to cancer, as well as concern about certain side effects, including weight gain, depression, and headaches.
Depo-Provera, produced by the Upjohn Company, is a synthetic form of progesterone that is used in almost 100 countries. One injection works for three months. FDA approval was withheld in the 1970s because of possible links to cancer and osteoporosis. In 1992 the FDA once again began the process of approving Depo-Provera.
Intrauterine Device (IUD)
An intrauterine device (IUD) is placed within the uterus for long-term prevention of pregnancy. It is not known precisely how an IUD prevents conception, but it is believed to produce uterine irritation, causing an inflammatory (fiery, severe) tissue reaction that is toxic (poisonous) to sperm and blastocyst (embryonic tissue).
Modern IUDs date back approximately 100 years. Today's devices, made of plastic, copper, or steel, are formed into loops, coils, and T-shapes. An IUD must be inserted and removed by a physician. Some IUDs have been associated with conditions like perforation (puncture) of the uterus, pelvic inflammatory disease, and even death. A. H. Robins' Dalkon Shield, an IUD design no longer manufactured, is notorious for its high complication rate. At least 20 deaths and thousands of internal injuries have been blamed on its use.
The most successful IUD is the plastic Lippes loop, developed in the 1960s by Dr. Jack Lippes (1924-). The device is straightened and placed in a tube for vaginal insertion into the uterus, where it resumes its loop shape when the tube is removed. Threads attached to the IUD extend into the vagina, so the user can check that the IUD is still in place and has not been expelled. Most contemporary IUDs are variations of the Lippes loop, containing either copper or progesterone.
A condom is a latex rubber or lambskin sheath (covering) placed over the erect penis to trap the semen (the fluid containing the sperm) ejaculated (discharged) during sexual intercourse. The condom also helps prevent the spread of venereal disease (sexually transmitted disease, or STD). The condom is the only method of birth control that also decreases the transmission of such diseases as hepatitis, AIDS, and papilloma virus, which is responsible for cervical cancer (cancer of the cervix, the narrow end of the uterus). The practice of using condoms during intercourse dates back to at least the sixteenth century. A condom can be used with or without spermicidal foams or gels.
Developed in Germany in the late nineteenth century, the diaphragm is a flexible rubber barrier that a woman inserts into the vagina before inter-course. The diaphragm covers the cervix (the narrow end of the uterus that leads into the vagina) to prevent sperm from entering the uterus. The diaphragm is an effective means of birth control when used in combination with a spermicide. Diaphragms come in different sizes, and a woman must be fitted by a birth control expert to get a prescription for the correct size.
Beginning in the 1970s spermicides, chemicals such as nonoxynol-9 that kill sperm, became available in suppositories, foams, creams, jellies, and sponges. Inserted into the vagina before sexual intercourse takes place, spermicides may be used alone or may be combined with condoms and diaphragms for greater effectiveness.
For the first time in over 100 years, there is news to report in the field of male contraceptives. Two studies have been using the hormone testosterone to suppress (lower) sperm production. An injectable form of the hormone is featured in World Health Organization (WHO) research, and an oral form is being used by the University of Washington (Seattle) in association with researchers in Bologna, Italy.
Both groups succeeded in lowering sperm production enough to qualify for the WHO's definition of infertility. The WHO study, conducted over two years with men in four continents around the world, showed the injections to be 98.6 percent effective in preventing pregnancy, which is similar to the effectiveness of birth control pills. Sperm counts for the men in both studies returned to normal after the hormones were stopped, proving that the treatment is reversible (the men could later father children).
These studies are exciting because they prove that it is possible to create an effective male contraceptive. The University of Washington study also proves that oral hormones can suppress sperm counts, which was not thought to be possible (researchers believed a concentrated pill form would be toxic). But researchers still predict a long wait—maybe even 50 years—before the male pill will be available.
Preventing pregnancy using the rhythm method requires a woman to carefully track her monthly cycle, so she can avoid engaging in intercourse near the time of ovulation. The rhythm method is the only method of birth control accepted by the Roman Catholic church. The temperature method (developed in 1947) involves monitoring body temperature variations during the monthly cycle. Temperature falls below normal in the weeks before ovulation, drops further during ovulation, and then rises above normal until menstruation. Monitoring variations in the quality and quantity of vaginal secretions can also help pinpoint the ovulation time. The calendar method assumes that ovulation consistently occurs on the fifteenth day of the monthly cycle, and is subsequently highly ineffective.
[See also Abortion ; Hormone ; RU486 ]
"Birth Control." Medical Discoveries. 1997. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3498100058.html
"Birth Control." Medical Discoveries. 1997. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3498100058.html
A measure or measures undertaken to prevent conception.
In the 1800s, temperance unions and anti-vice societies headed efforts to prohibit birth control in the United States. Anthony Comstock, the secretary of the Society for the Suppression of Vice, advocated a highly influential law passed by Congress in 1873. It was titled the Act for the Suppression of Trade in, and Circulation of Obscene Literature and Articles of Immoral Use, but known popularly as the comstock law or Comstock Act (18 U.S.C.A. § 1416-62 ; 19 U.S.C.A. § 1305 ). The Comstock Act prohibited the use of the mail system to transmit
obscene materials or articles addressing or for use in the prevention of conception, including information on birth control methods or birth control devices themselves.
Soon after the federal government passed the Comstock Act, over half of the states passed similar laws. All but two of the rest of the states already had laws banning the sale, distribution, or advertising of contraceptives. Connecticut had a law that prohibited even the use of contraceptives; it was passed with little or no consideration for its enforceability.
Despite popular opposition, birth control had its advocates, including margaret sanger. In 1916, Sanger opened in New York City the first birth control clinic in the United States. For doing so, she and her sister Ethel Byrne, who worked with her, were prosecuted under the state's version of the Comstock law (People v. Byrne, 99 Misc. 1, 163 N.Y.S. 682 ; People v. Sanger, 179 A.D. 939, 166 N.Y.S. 1107 ). Both were convicted and sentenced to thirty days in a workhouse.
After serving her sentence, Sanger continued to attack the Comstock Act. She established the National Committee for Federal Legislation for Birth Control, headquartered in Washington, D.C., and proposed the "doctor's bill." This bill advocated change in the government's policy toward birth control, citing the numerous instances in which women had died owing to illegal abortions and unwanted pregnancies. The bill was defeated, due, in part, to opposition from the Catholic Church and other religious groups.
But when the issue of Sanger's sending birth control devices through the mail to a doctor was pressed in United States v. One Package, 13 F. Supp. 334 (S.D.N.Y. 1936), the court ruled that the Comstock Act was not concerned with preventing distribution of items that might save the life or promote the well-being of a doctor's patients. Sanger had sought to challenge the Comstock Act by breaking it and sending contraception in the mail. Her efforts were victorious and the exception was made. The doctor to whom Sanger had sent the device was granted its possession.
Sanger furthered her role in reforming attitudes toward birth control by founding the Planned Parenthood Federation of America in 1942. Planned Parenthood merged previously existing birth control federations and promoted a range of birth control options. In the 1950s, Sanger went on to support the work of Dr. Gregory Pincus, whose research eventually produced the revolutionary birth control pill.
By the 1960s, partly as a result of Sanger's efforts, popular and legal attitudes toward birth control began to change. The case of griswold v. connecticut, 381 U.S. 479, 85 S. Ct. 1678, 14 L. Ed. 2d 510 (1965), loosened the restrictions of the Comstock Act. When the Planned Parenthood League of Connecticut opened in 1961, its executive director, Estelle Griswold, faced charges of violating Connecticut's ban on the use of contraceptives (Conn. Gen. Stat. Ann. §§ 53-32, 54-196 ).
A divided Supreme Court overturned Griswold's conviction with a ground-breaking opinion that established a constitutional right to marital privacy. The Court threw out the underlying Connecticut statute, which prohibited both using contraception and assisting or counseling others in its use. The majority opinion, authored by Justice william o. douglas, looked briefly at a series of prior cases in which the Court had found rights not specifically enumerated in the Constitution—for example, the right of freedom of association, which the Court has said is protected by the first amendment, even though that phrase is not used there (NAACP v. Alabama, 357 U.S. 449, 78 S. Ct. 1163, 2 L. Ed. 2d 1488 ). Douglas concluded that various guarantees contained in the Bill of Rights' Amendments One, Three, Four, Five, Nine, along with Amendment Fourteen, create "zones of privacy," which include a right of marital privacy. The Connecticut statute, which could allow police officers to search a marital bedroom for evidence of contraception, was held unconstitutional; the government did not have a right to make such intrusions into the marital relationship.
The other branches of the government followed the Court's lead. President lyndon b. johnson endorsed public funding for family planning services in 1966, and the federal government began to subsidize birth control services for low-income families. In 1970 President richard m. nixon signed the Family Planning Services and Population Research Act (42 U.S.C.A. § 201 et seq.). This act supported activities related to population research and family planning.
More and more, the Comstock Act came to be seen as part of a former era, until, in 1971, the essential components of it were repealed. But this repeal was not necessarily followed in all the states. In the 1972 case of Eisenstad v. Baird, 405 U.S. 438, 92 S. Ct. 1029, 31 L. Ed. 2d 349, the Court struck down a Massachusetts law still on the books that allowed distribution of contraceptives to married couples only. The Court held that the Massachusetts law denied single persons equal protection, in violation of the fourteenth amendment.
In the 1977 case of Carey v. Population Services International, 431 U.S. 678, 97 S. Ct. 2010, 52 L. Ed. 2d 675, the Supreme Court continued to expand constitutional protections in the area of birth control. The Court imposed a strict standard of review for a New York law that it labeled "defective." The law had prohibited anyone
but physicians from distributing contraceptives to minors under sixteen years of age. The law had also prohibited anyone but licensed pharmacists from distributing contraceptives to persons over sixteen. Carey allowed makers of contraceptives more freedom to distribute and sell their products to teens.
Throughout the 1990s, cases were brought in a number of jurisdictions in which parents sought to prohibit the distribution of condoms and other forms of birth control in schools to unemancipated minor students without the consent of a parent or guardian. Although some jurisdictions held that such birth control distribution programs violated the parents' due process rights, other jurisdictions upheld the privacy rights of such minors and found the programs to be constitutional.
More controversy arose after women gained access to RU-486, the so-called "morning-after" pill and later generations of emergency contraceptives, which are high-dosage birth control pills designed to be taken shortly after unprotected intercourse has taken place. Emergency contraception continues to be opposed by antiabortion groups on the ground that it is another form of abortion.
Since 2000, the election of Republican majorities in various state legislatures has strengthened the position of groups opposing abortion and reproductive rights. In addition to continuing to battle for the right to require parental consent for contraceptive services to minors both in schools and community health clinics, a number of conservative groups support "abstinence-only" sexuality education classes in schools. While some proponents want to make such classes optional and are willing to have them taught alongside traditional courses that discuss various methods of birth control, other adherents seek to have these classes taught in place of the traditional courses.
President george w. bush's election in 2000 as well as the Republican gains in the House in 2002, further strengthened the efforts of those who seek to restrict access to birth control education and methods.
Bacigal, Ronald J. 1990. The Limits of Litigation—The Dalkon Shield Controversy. Durham, N.C.: Carolina Academic Press.
Hoff-Wilson, Joan. 1991. Gender and Injustice: A Legal History of U.S. Women. New York: New York Univ. Press.
McCann, Carole R. 1994. Birth Control Politics in the United States, 1916–1945. Ithaca: Cornell Univ. Press.
McLaren, Angus. 1990. A History of Contraception from Antiquity to the Present. Cambridge, Mass.: Blackwell.
Planned Parenthood. Available online at <www.plannedparenthood.org> (accessed June 1, 2003).
Solinger, Rickie. 2000. Wake Up Little Susie: Single Pregnancy and Race before Roe v. Wade. New York: Routledge.
"Birth Control." West's Encyclopedia of American Law. 2005. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3437700546.html
"Birth Control." West's Encyclopedia of American Law. 2005. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3437700546.html
Birth Control Pill
Birth Control Pill
Oral contraceptives, or birth control pills, have been used by more than 60 million women worldwide, and are considered by many to be the most socially significant medical advance of the twentieth century. The birth control pill is a tablet taken daily by a woman to prevent pregnancy. The birth control pill does this by inhibiting the development of the egg in the woman's ovary during her monthly menstrual cycle. During a woman's menstrual cycle, a low estrogen level normally triggers the pituitary gland to send out a hormone that initiates development of an egg. The birth control pill releases enough synthetic estrogen to keep that hormone from being released during the monthly cycle. The birth control pill also contains a second synthetic hormone, progestin, which increases the thickness of cervical mucus and impedes development of the uterine lining to further prevent pregnancy. Studies have shown that the birth control pill is 99% effective in preventing pregnancy. The results of studies on the safety of the birth control vary. Some studies show that its use increases the risk of certain types of cancer, while others show that risk to be minimal. There are also claims that the birth control pill increases risk of stroke and heart attacks.
The Planned Parenthood Federation of America commissioned Dr. Gregory Pincus and Dr. John Rock to develop a simple and reliable form of contraception in 1950. Over the next several years, the doctors worked on formulating a birth control pill at the Worcester Foundation for Experimental Biology in Massachusetts. They tested their invention on 6,000 women in Puerto Rico and Haiti. The invention was then marketed in the United States in 1960 as Enovid-10.
Many attribute the changing social land-scape in the United States during the 1960s to the widespread acceptance and use of the birth control pill. As sexual relations outside of marriage and for reasons other than childbearing became more socially acceptable and women seeking careers sought family planning methods, the environment was ripe for introduction of this discreet, easy-to-use form of contraception.
Despite its popularity, soon after the birth control pill was introduced, the public began to raise concerns about side effects and safety. As early as 1961, reports had begun to circulate that the birth control pill increased a woman's risk of suffering a stroke or a heart attack by causing blood clotting. In 1965, the federal Food and Drug Administration (FDA) provided a scientist at Johns Hopkins School of Hygiene and Public Health to study the side effects of the birth control pill. The agency also established an Advisory Committee on Obstetrics and Gynecology to study the relationship between oral contraceptives and blood clotting, as well as whether the birth control pill increased risk of breast, cervical, or endometrial cancer. The committee, the first-ever advisory committee established by the FDA, reported in 1966 that it had found no evidence to render the birth control pill unsafe for human use.
Unsatisfied, the FDA called for a larger study of the effects of the birth control pill on blood clotting. The agency also determined, however, that the birth control pill had not been in use long enough for a study of its relationship to cancer to be observed. At the same time, the World Health Organization (WHO) also determined that the effects of the birth control pill on blood clotting warranted study. By 1968, a British study revealed an increase in blood clots among women taking oral contraceptives. The FDA required that packages of birth control pills contain warning labels. In 1969, the agency concluded that the amount of estrogen affected the level of blood clotting and that birth control pills containing lower dosages of estrogen were as effective as their high-estrogen counterparts. The agency began advising doctors to prescribe the lowest estrogen dosage possible to their patients.
An oral contraceptive containing only progestin was introduced in the early 1970s. Dubbed the mini-pill, this form of oral contraceptive prevented pregnancy solely by causing changes in the uterus and cervix. An egg was produced, but the changes caused by the mini-pill made it difficult for the egg to unite with sperm from the male. While the mini-pill eliminates the risks posed by estrogen, it has been found to be less effective in preventing pregnancy than pills containing estrogen. Throughout the 1970s, pills containing consistently lower doses of estrogen were introduced on the market.
In 1982 a biphasic birth control pill was introduced, followed by a triphasic pill in 1984. These low-dose pills contained varying ratios of progestin to estrogen. In 1988 all three drug companies still manufacturing high-dose birth control pills withdrew their high-dose products from the market, at the FDA's request. By 1990, the amount of estrogen in birth control pills had been reduced by at least two-thirds. Studies show that the risk of blood clotting in women taking the birth control pill has decreased accordingly. Further studies have shown that high-dose birth control pills actually reduced a woman's risk of ovarian and endometrial cancers, benign cysts of the ovaries and breasts, and pelvic inflammatory disease. The risk of breast or cervical cancer is still disputed.
The pill is still unsafe for certain groups of women, including those who smoke; are obese; have a history of health problems such as diabetes, high blood pressure, or high cholesterol; or have a history of blood clots heart attack, stroke, liver disease, breast cancer or cancer of the reproductive organs.
In addition to preventing pregnancy, the birth control pill can also relieve symptoms associated with premenstrual syndrome. There are at least 30 varieties of birth control pills on the market today.
The main ingredients of the birth control pill are powders containing synthetic versions of the hormones estrogen and progestin.
- Using a process known as the wet granulation method, the active ingredients—the powders containing synthetic versions of estrogen and progestin—are mixed together with a dilutant and a disintegrant (products that dilute the powders and cause them to dissolve in liquid) in a large mixer resembling the mixmaster found in many kitchens. For larger batches, a device known as a twin-shell blender may be used.
- Solutions carrying a binding agent (the material that will cause the contents of the tablet to cohere) are stirred into the powder mass, which is wetted until it takes on the consistency of brown sugar.
- The powder mass (known as wet granulation) is forced through a mesh screen.
- The moist material is then placed on shallow trays covered with large sheets of paper and placed in drying cabinets.
- A lubricant, in the form of a fine powder, is screened onto the dried material (known as dry granulation).
- The lubricant and the dry granulation are then mixed in a blender, using a turnbling-type action.
- Tablets are formed from the mixture, typically using a method known as direct compression. Direct compression uses steel punches and dies in large machines, which press tablets directly from the powdered mixture. The physical composition of the powdered mixture is not altered in any way. The punch and die system is often computerized.
- The tablets are inspected to ensure compliance with federal regulations and packaged for shipment to pharmacies.
Like medications, birth control pills are subject to strict regulations set forth by the FDA. Production of birth control pills occurs in a highly sterile environment and samples are taken throughout the production process to ensure each batch of pills meets federal regulations. Factors examined include weight, coloration, and other cosmetic concerns. Many computerized tablet machines can provide weight information. The tablet punch and die systems are regularly inspected as well. In addition, the environment in which the tablets are produced is heavily controlled to avoid the influx of contaminants.
A relatively recent innovation in the field of birth control is the introduction of Norplant, a contraceptive that works on the same time-release concept as the pill but is inserted under the skin of the upper arm and releases the proper dosage into the body's system each day. Another innovation that is new in the United States, although it has been used in Europe, is RU486, a type of birth control that can be taken after intercourse to prevent pregnancy.
Where to Learn More
Gennaro, Alfonso R., ed. Remington:The Science and Practice of Pharmacy. Eaton, PA: Mack Publishing Co., 1995.
Harris, Carla D. "The Birth Control Pill Revisited." In NAACOG's Clinical Issues, 1992: pp. 246-50.
Ketzung, Bertram. Basic and Clinical Pharmacology. Stamford, CT: Appleton and Lange, 1998.
"Birth Control Pill." How Products Are Made. 1999. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-2896800023.html
"Birth Control Pill." How Products Are Made. 1999. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-2896800023.html
birth control, practice of contraception for the purpose of limiting reproduction.
Methods of Birth Control
Male birth control methods include withdrawal of the male before ejaculation (the oldest contraceptive technique) and use of the condom, a rubber sheath covering the penis. The condom, because of its use as a protection against sexually transmitted diseases, including AIDS, has become a frequently used birth control device.
Contraceptive methods for women include the rhythm method—abstinence around the most likely time of ovulation—and precoital insertion into the vagina of substances (creams, foams, jellies, or suppositories) containing spermicidal chemicals. The use of a diaphragm, a rubber cup-shaped device inserted before intercourse, prevents sperm from reaching the uterine cervix; it is usually used with a spermicide. Contraceptive sponges, which are impregnated with a spermicide, also are inserted into the vagina before intercourse and work primarily by acting as a barrier to the sperm. Intrauterine devices, or IUDs, are variously shaped small objects inserted by a doctor into the uterus; they apparently act by creating a uterine environment hostile either to sperm or to the fertilized egg.
The birth control pill, an oral contraceptive, involves a hormonal method in which estrogen and progestins (progesteronelike substances) are taken cyclically for 21 or 84 days, followed by 7 days of inactive or no pills. The elevated levels of hormones in the blood suppress production of the pituitary hormones (luteinizing hormone and follicle-stimulating hormone) that would ordinarily cause ovulation. An oral contraceptive formulation that utilizes no inactive pills and is taken every day (and completely suppresses menstruation) also exists. Estrogen and progestins may also be delivered through the weekly use of a contraceptive skin patch or the monthly use of a vaginal ring (a flexible plastic ring inserted in the vagina); both slowly release the hormones they contain. Although used primarily for birth control, some oral contraceptives are also prescribed to regulate the menstrual cycle, to relieve symptoms of endometriosis, to treat acne, and for other reasons.
Sterilization of the female, often but not always performed during a Cesarean section or shortly after childbirth, consists of cutting or tying both Fallopian tubes, the vessels that carry the egg cells from the ovaries to the uterus. In male sterilization (vasectomy) the vas deferens, the tubes that carry sperm from the testes to the penis, are interrupted. Sterilization, in most cases irreversible, involves no loss of libido or capacity for sex.
No contraceptive yet devised is at once simple, acceptable, safe, effective, and reversible. Some, such as the diaphragm, condom, and chemical and rhythm methods, require high motivation by users. The pill, which must be taken daily, sometimes induces undesirable side effects, such as nausea, headache, weight gain, and increased tendency to develop blood clots. Use of the pill is also associated with a higher risk of breast and cervical cancer—but a lower risk of cancer of the ovaries and endometrium, benign breast cysts, premenstrual syndrome, and iron-deficiency anemia. The IUDs, although requiring no personal effort or motivation, are often not tolerated or are expelled, and they sometimes, particularly if poorly designed, cause uterine infection, septic abortion, and other problems.
If birth control fails (or is not used), doctors may prescribe several large doses of certain oral contraceptives as "morning after" pills or emergency contraceptives; the high level of hormones can inhibit the establishment of pregnancy even if fertilization has taken place. Levonorgestrel, a progestin marketed under the tradename Plan B, is used an emergency contraceptive, and may be effective up to 3 days after sexual intercourse. Approved for use in the United States in 1999, it was made available over-the-counter for women 18 years or older in 2006. Ulipristal acetate, a progesterone agonist/antagonist sold under the tradename ella, was approved as an emergency contraceptive in 2010; it may be effective for up to 5 days after intercourse. Mifepristone, or RU-486, the so-called abortion pill, is effective within seven weeks after conception and requires close medical supervision. It was first approved in Europe and was tested in the mid-1990s in United States, where it was approved in 2000. Another experimental technique is immunization against human chorionic gonadotropin (HCG), a hormone secreted by a developing fertilized egg that stimulates production of progesterone by the ovary; the effect of the anti-HCG antibody would be to inactivate HCG and thereby induce menstruation even if fertilization occurred.
See also abortion; menstruation; reproductive system.
History of the Birth Control Movement
Although contraceptive techniques had been known in ancient Egypt, Greece, and Rome, the modern movement for birth control began in Great Britain, where the writings of Thomas Robert Malthus stirred interest in the problem of overpopulation. By the 1870s a wide variety of birth control devices were available in English and American pharmacies, including rubber condoms and diaphragms, chemical suppositories, vaginal sponges, and medicated tampons. Easy public access to contraceptive devices in the United States aroused the ire of Anthony Comstock and others, who lobbied Congress until it passed (1873) a bill prohibiting the distribution of these devices across state lines or through the mail. Moreover, in England in 1877, Annie Besant and Charles Bradlaugh were tried for selling The Fruits of Philosophy, a pamphlet on contraceptive methods, written in 1832 by an American, Charles Knowlton. After their famous trial, the Malthusian League was founded. Meanwhile, a variety of contraceptive devices remained available to a large public, usually advertised in veiled but unmistakable language.
In 1878 the first birth control clinic was founded in Amsterdam by Aletta Jacobs. The first U.S. birth control clinic, opened (1916) by Margaret Sanger in Brooklyn, N.Y., was closed by the police; she received a 30-day jail sentence. She later permanently established a clinic in New York City in 1923. In Great Britain the Malthusian League, aided by Marie Stopes, established a birth control clinic in London in 1921.
Sanger also helped organize (1917) the National Birth Control League in the United States; in 1921 it became the American Birth Control League, and in 1942 the Planned Parenthood Federation of America. Meanwhile, in 1918 an American judge ruled that contraceptive devices were legal as instruments for the prevention of disease, and the federal law prohibiting dissemination of contraceptive information through the mails was modified in 1936. Throughout the 1940s and 50s, birth control advocates were engaged in numerous legal suits. In 1965 the U.S. Supreme Court struck down the one remaining state law (in Connecticut) prohibiting the use of contraceptives.
The federal government began to take a more active part in the birth control movement in 1967, when 6% of the funds allotted to the Child Health Act was set aside for family planning; in 1970, the Family Planning Services and Population Act established separate funds for birth control. Birth control and sex education in schools continue to be emotional issues in the United States, where adolescent sexual activity and pregnancy rates are high and bring with them increased risks of sexually transmitted diseases and complications of pregnancy, as well as societal and personal costs.
Birth control on the international level is led by the International Planned Parenthood Federation, founded in 1952, with members in 134 countries by 1995. Sweden was one of the first countries to provide government assistance for birth control, which it did as early as the 1930s. Two of the more successful birth control programs have been in Japan, where the birthrate has been dramatically reduced, and—more controversially—in China, where the government has a "one family, one child" policy and local authorities have typically intimated women pregnant into aborting a second pregnancy. Several of the so-called underpopulated nations, however, have a stated policy of encouraging an increased birthrate, e.g., Argentina, and concern over declining populations has increased in recent years in certain Western European countries and Russia. Among religious bodies, the Roman Catholic Church has provided the main opposition to the birth control movement; popes Paul VI and John Paul II reaffirmed this stance in encyclicals.
See G. J. Hardin, Birth Control (1970); L. Lader Breeding Ourselves to Death (1971) and The Margaret Sanger Story (1955, repr. 1975); C. Djerassi, The Politics of Contraception (1981); E. Jones, Pregnancy, Contraception, and Family Planning Services in Industrialized Countries (1989); L. V. Marks, Sexual Chemistry: A History of the Contraceptive Pill (2001); A. Tone, Devices and Desires: A History of Contraceptives in America (2001).
"birth control." The Columbia Encyclopedia, 6th ed.. 2016. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1E1-birthcon.html
"birth control." The Columbia Encyclopedia, 6th ed.. 2016. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-birthcon.html
Birth control refers to the means used to limit or space human fertility. The technological development of these means, the organization of their use, and the fairness of their application are the province of scientists, policymakers, religious leaders, and the users of birth control. The definition includes recent methods such as condoms, sterilization, intrauterine devices, and the birth control pill. It also includes older methods, such as abortion, prolonged nursing of infants, periodic abstinence from sex, herbal tonics, and coitus interruptus.
The question of the comparative effectiveness of various techniques often comes up in discussions of birth control. Abortion, some forms of surgical sterilization, and complete abstinence from intercourse are the most effective at preventing births. Yet, effective birth prevention is only one of the goals considered by users of birth control and by the persons and institutions promoting its use. Safety and ease of use are, for example, other important dimensions of birth control technologies. In fact, limiting births is sometimes not even the main goal of a birth control practice, but its side effect. For example, inducing an abortion could be a means to save a woman’s life. Likewise, the contraceptive effect of prolonged nursing may be subordinate to a woman’s inclination to breast-feed. Moreover, practitioners of periodic abstinence and coitus interruptus can see these actions as enhancing their own self-worth because of the sacrifices they entail.
In 1798 the English economist Thomas Robert Malthus (1766–1834) argued for the eventual scarcity of natural resources given the rate of population growth worldwide. This argument became the basis of the first organized efforts to limit population sizes in the West. The fact that most of these efforts were directed at the poor, the ill, and the criminal made for an enduring link between birth control and eugenics, the belief that only the “fittest” humans should reproduce. Among the methods touted for their effectiveness were condoms, which became increasingly popular after 1860 with the use of rubber in their manufacture, replacing animal intestines and silk sheaths. Douching solutions and vaginal pessaries also became more effective in the nineteenth century. Sterilization required developments in medical antisepsis and anesthesia, which were only coming of age in the 1870s.
Opponents to organized birth control emerged in the 1870s; they included Anthony Comstock (1844–1915), founder of the New York Society for the Suppression of Vice, and the Catholic Church. To them, birth control was bound to a deep moral crisis in society. Yet the number of users of birth control grew, and ideas about family size and women’s roles in society changed. Activists like Margaret Sanger (1883–1966) aided in the popularization of birth control, linking it to greater freedom for women. Sanger coined the term birth control in 1913 to replace the label of neo-Malthusianism. As the birth control movement became more popular, it attracted allies that began to reframe birth control as more than just fertility limitation. This is how the notion of birth control became associated with that of family planning by the 1930s.
Birth control acquired an additional political meaning in the 1950s with the Cold War. While population growth stabilized in Europe and North America, it accelerated in the so-called third world. The contraceptive pill emerged in this context and was promoted not only as a convenient contraceptive but also as a tool to lower population growth rates. Devised by the biologist Gregory Pincus (1903–1967) with funds from philanthropist Katharine McCormick (1875–1967) and Sanger’s support, and marketed by G. D. Searle, the pill became the most popular form of birth control by 1965 in the United States.
During the late 1960s, the prospect of misery, anarchy, and socialist advances in the third world led to international development policies like the U.S. Alliance for Progress and the involvement of philanthropies like the Rockefeller Foundation in population control programs. The latter were tied to the intervention of governments in the developing world, some of which applied policies throughout the 1960s, 1970s, and 1980s to quickly lower population growth rates to match objectives set by medical and social science experts in industrialized nations. As was evident following the United Nations World Population Conference of 1974 in Bucharest, however, third world nations often suspected that population control programs were implemented only for the benefit of developed nations, while hurting the interests of the third world and failing to address the root causes of poverty and inequality. Third world nations also claimed often that population control programs sometimes conflicted with local and personal beliefs about the worth of individual births. Today, with the exception of China’s “one-child policy,” instituted in 1978, birth control programs in most countries have retreated from the aggressive promotion of some methods in favor of voluntarism, informed choice of contraceptives, sex education, and the insertion of birth control provisions within broader systems for health care delivery, particularly maternal and infant health. This trend began as early as the mid-1960s. Yet, even now, as in the eighteenth century, the free choices and additional services implied in family planning are part of a complex process involving individual decisions, social values, and material constraints.
SEE ALSO Contraception; Demography; Population Control; Population Studies
Ginsburg, Faye, and Rayna Rapp, eds. 1995. Conceiving the New World Order: The Global Politics of Reproduction. Berkeley: University of California Press.
Tone, Andrea. 2001. Devices and Desires: A History of Contraceptives in America. New York: Hill and Wang.
Raúl Antonio Necochea López
"Birth Control." International Encyclopedia of the Social Sciences. 2008. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3045300194.html
"Birth Control." International Encyclopedia of the Social Sciences. 2008. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3045300194.html
Birth control refers to the practice of deliberately controlling the number of children born, especially by reducing or eliminating the possibility of conception. While there are many forms of birth control, they can be broadly classified as follows: behavioral methods; surgical methods; barrier methods; hormonal methods; and methods that prevent the continuation of pregnancy, namely abortion.
Behavioral methods include the practice of abstinence from intercourse, particularly during the fertile period of the woman's menstrual cycle, commonly known as the rhythm method. While the fertile days generally occur in the three to four days before and after ovulation, this particular method of birth control is frequently ineffective because of the difficulty in predicting ovulation with the necessary accuracy. Other behavioral methods include withdrawal of the penis from the vagina prior to male orgasm. This depends on complete and timely withdrawal, with no sperm deposited anywhere near the vulva . It is not an effective method of birth control.
Surgical methods of birth control can be used by both males and females. In males, this involves a vasectomy in which the vas deferens is severed. In females, a tubal ligation ties off the fallopian tubes , thus preventing sperm from reaching the egg. These methods offer a high degree of effectiveness but have the disadvantage of being difficult to reverse should the individuals ever want to regain fertility.
Barrier methods of birth control involve preventing the sperm from reaching and fertilizing the egg. For males, this entails the use of condoms to prevent the sperm from entering the vagina. In females, sponges, spermicides, or diaphragms are used to prevent the sperm from entering the uterus and ultimately the fallopian tubes. When used in combination and consistently, these methods can be highly effective, but they frequently fail due to inconsistent usage or failure of the barrier (for example, a broken condom or improperly inserted diaphragm).
Hormonal methods are among the most common and effective means of birth control worldwide. These methods rely on the use of hormones (usually a combination of progesterone and estrogen) that disrupt the normal menstrual cycle in the female, resulting in a suppression of ovulation and hence conception. While the birth control pill is the most common of these methods, other common hormonal methods of birth control are implants (such as Norplant) that release hormone continuously or injections of hormones every few months that likewise suppress ovulation.
All of these hormonal methods are highly effective means of birth control with generally minor side effects. Major side effects, such as stroke, are rare and generally associated with increasing female age and smoking. The "morning after" pill is also hormonal in nature. It is often referred to as an "emergency form" of birth control, and is taken following intercourse. It prevents the embryo from successfully implanting in the uterine wall.
Another effective means of birth control is the intrauterine device (IUD), plastic and metal (often copper) devise that is inserted into the uterus. While earlier versions were linked to side effects including pelvic inflammatory disease, the currently available forms have few serious side effects and have the advantage of being easily removed when a restoration of fertility is desired. It remains unclear how exactly the IUD exerts its contraceptive effects, but it is thought that it alters the uterine environment to prevent sperm passage or to prevent implantation of the fertilized egg.
The final category of birth control is abortion, which involves the cessation of a pregnancy. It is not a contraceptive technique, given that it does not prevent conception from occurring, but rather, one that terminates an existing pregnancy. This could be performed surgically by removing the fetus from the womb. More recently, drugs that induce a medical abortion such as Ru486 have become available in certain countries, including the United States. This drug, taken during the first trimester of pregnancy, inhibits the effects of progesterone, a hormone that is essential to the continuation of the pregnancy. Thus the fetus is ultimately expelled from the uterus.
While a wide variety of alternatives exist for or birth control, the selection of an appropriate method depends on a wide array of individual circumstances and should be made in conjunction with a knowledgeable health care provider.
see also Female Reproductive System; Male Reproductive System; Sexual Reproduction; Sexually Transmitted Diseases
Margaret Somosi Saha
Bullough, Vern, and Bonnie Bullough. Contraception: A Guide to Birth Control Methods. Amherst, NY: Prometheus Books, 1997.
Knowles, Jon, and Marcia Ringel. All About Birth Control: A Personal Guide. New York: Crown Publishers, 1998.
Peacock, Judith. Birth Control and Protection: Choices for Teens (Perspectives on Healthy Sexuality). Mankato, MN: Capstone, 2000.
Saha, Margaret Somosi. "Birth Control." Biology. 2002. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3400700054.html
Saha, Margaret Somosi. "Birth Control." Biology. 2002. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3400700054.html
Before the third quarter of the 19th cent., however, there is little statistical evidence that English couples were practising much family limitation. The only important qualification is that marital fertility was on the low side (i.e. significantly lower than its potential biological maximum) due apparently to the contraceptive effect of relatively long periods of breast-feeding. Birth control before 1870 was restricted to higher social classes and some groups of industrial workers, such as those in the textile industry.
All this changed after 1870 when, within a few generations, Britain, in common with most other European countries, underwent the so-called fertility transition. Between 1880 and 1930 the fertility of women of child-bearing age declined by over 60 per cent and the average size of British families fell by almost two-thirds. This declining birth rate was due largely to the adoption of birth control within marriage. It is also clear that the contraceptive techniques used in the early stages of this decline were largely traditional methods such as abstinence, coitus interruptus, and ‘safe periods’ rather than mechanical aids such as condoms, caps, or sponges. It remains unclear why couples, particularly working-class couples, chose to limit the size of their families from the late 19th cent. Since traditional birth control methods were used, fertility decline was not ‘caused’ by any increase in the supply of mechanical contraceptives. It is unlikely, too, that improving survival chances of infants promoted a desire to reduce completed family size, since the fertility decline appears to have antedated the fall in infant mortality. In the end, the adoption of birth control within marriage may have been due to a new determination of women to limit the size of their families, prompted by the impact of feminist arguments, growing medical information regarding the dangers of repeated childbirth, and the impact of universal compulsory schooling in 1880, which reduced the contribution children might make to the household economy.
The most dramatic effect upon family and social life, however, came in the later 20th cent. with the increasing use of ‘the pill’, including, late in the century, the ‘morning-after’ pill. Among the consequences were an increase in the number of couples cohabiting rather than marrying, and in the number of single-parent families. See also children.
JOHN CANNON. "birth control." The Oxford Companion to British History. 2002. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O110-birthcontrol.html
JOHN CANNON. "birth control." The Oxford Companion to British History. 2002. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O110-birthcontrol.html
BIRTH CONTROL. The term "birth control" was coined by Margaret Sanger in 1921, when she founded the American Birth Control League (later Planned Parenthood). She believed that women should have control over their own bodies and their own pregnancies. Though she recognized birth control in larger social and political contexts and was criticized for working too closely with the eugenics movement, she saw it clearly as a health issue for women. Sanger worked as a nurse in New York City's "Hell's Kitchen" and saw women's health suffering as the result of many pregnancies. Her own mother died of tuberculosis after bearing eleven children.
Sanger had promoted the use of birth control in the decade before 1921 as a means to less restrictive sexuality for women. But such claims were considered far too radical and would not facilitate legalizing contraceptives. Contraceptives had become illegal in the United States in 1873 in a Victorian purity crusade led by Anthony Comstock. For centuries, couples had used a variety of methods of birth control—animal skin condoms, vaginal sponges, douches, abstinence, abortion—but nineteenth-century technology brought rubber condoms into mass production and the mass market. The Comstock laws prohibited all contraceptives and contraceptive information, categorizing them as obscenity. The movement to make them legal again would gain momentum with the aid of the American Medical Association, which promoted birth control as a public health issue.
More permissive attitudes toward sexual behavior developed in the twentieth century—flappers of the 1920s flaunted apparent promiscuity, and by the 1940s the automobile allowed for more privacy in dating, and vending machines were dispensing condoms. Still, numbers of un-married women having sexual intercourse remained comparatively low until the 1960s. Contraceptives were generally intended for, and used by, married couples. The sexual revolution and the introduction of the birth control pill in the 1960s would change that. The United States Supreme Court ruled against a Connecticut law prohibiting the dispensing of contraceptives to married couples in Griswold v. Connecticut (1965), a move that paralleled changing attitudes toward birth control in American society. The women's movement embraced reproductive rights as fundamental to progress for women in the workplace, education, and politics, as they could more easily limit their family size.
The birth control pill was promoted as liberating for women as it did not interfere in the act of sexual inter-course, and it was nearly 100 percent effective. In turn, it was embraced by men, as women became less inhibited in sex because the fear of pregnancy was removed. Other forms of contraceptives such as intrauterine devices and Norplant were marketed in subsequent decades, and while each involved risks, women readily accepted them.
Gordon, Linda. The Moral Property of Women: A History of Birth Control Politics in America. 3rd ed. Chicago: University of Illinois Press, 2002.
Tone, Andrea. Devices and Desires: A History of Contraceptives in America. New York: Hill and Wang, 2001.
See alsoGriswold v. Connecticut .
"Birth Control." Dictionary of American History. 2003. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1G2-3401800453.html
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"birth control." A Dictionary of Biology. 2004. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O6-birthcontrol.html
"birth control." A Dictionary of Biology. 2004. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-birthcontrol.html
birth con·trol • n. the practice of preventing unwanted pregnancies, typically by use of contraception.
"birth control." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O999-birthcontrol.html
"birth control." The Oxford Pocket Dictionary of Current English. 2009. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-birthcontrol.html
"birth control." A Dictionary of Nursing. 2008. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O62-birthcontrol.html
"birth control." A Dictionary of Nursing. 2008. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-birthcontrol.html
birth control pill
birth con·trol pill • n. a contraceptive pill.
"birth control pill." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O999-birthcontrolpill.html
"birth control pill." The Oxford Pocket Dictionary of Current English. 2009. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-birthcontrolpill.html
"birth control." World Encyclopedia. 2005. Encyclopedia.com. (July 24, 2016). http://www.encyclopedia.com/doc/1O142-birthcontrol.html
"birth control." World Encyclopedia. 2005. Retrieved July 24, 2016 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-birthcontrol.html