Sexual and reproductive health

• 1. Introduction

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  Sexual and reproductive health sits at the center of some of the most contested debates in medicine, law, and politics. The Guttmacher-Lancet Commission put it plainly: almost all of the 4.3 billion people of reproductive age worldwide will experience inadequate sexual and reproductive health services over the course of their lives. That figure is not a forecast. It is a description of the present.

  The World Health Organization offered a working definition of sexual health in 2006 that departed sharply from purely clinical language. Health, in this framing, is not merely the absence of disease, dysfunction, or infirmity. It requires a positive and respectful approach to sexuality, the possibility of safe and pleasurable sexual experiences, and freedom from coercion and discrimination. Rights, in other words, are not a footnote to health. They are a precondition for it.

• 2. Adolescents at Risk

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  In 2016, adolescent birth rates for girls aged 15 to 19 stood at 45 per 1,000. That single number carries enormous weight. For most adolescent females, the body has not yet finished growing, and pregnancy during that period exposes them to a cascading set of complications: anemia, malaria, HIV, postpartum bleeding, and mental health disorders including depression and suicidal ideation.

  The three leading causes of death for females aged 15 to 19 tell a stark story. Maternal conditions account for 10.1% of those deaths. Self-harm accounts for 9.6%. Road conditions come third at 6.1%. In 2014, one in three adolescent girls experienced sexual violence, and there were more than 1.2 million deaths in that age group that year.

  In developing countries, young women face particular pressure to marry early. The reasons are varied but interlocking: families may rely on dowry income, children may be needed for labor, and prearranged marriages remain common in many communities. These arrangements deepen the cycle of poverty and limit a young woman's ability to negotiate safe sex or access contraception.

  For teenagers who identify as non-heterosexual, the risks multiply again where homosexuality is legally or socially penalized. Social isolation, depression, and suicide are documented outcomes in those environments. The availability of sex education for teenagers varies widely by country, and where it is absent or hostile, the consequences are measurable.

• 3. Maternal Mortality's Geography

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  Ninety-five percent of maternal deaths occur in low-income settings, and over a period of 25 years, global maternal mortality dropped by 44%. That progress is real but unevenly distributed in ways that reveal how much geography and economics determine survival.

  A woman dies of childbirth complications every minute in developing countries. Maternal deaths in developed countries account for just 1% of the global total. The gap maps closely onto access to skilled birth attendants, prenatal care, and postnatal support. In 2015, only 40% of women in low-income countries received the recommended number of antenatal care visits.

  The causes of death during childbirth are well documented: severe bleeding, infection, high blood pressure, delivery complications, and unsafe abortions. Regional diseases like malaria and AIDS introduce additional risk. The younger the woman, the higher the risk for both mother and infant.

  Sub-Saharan Africa and South Asia carry the greatest burden, partly because of critically low concentrations of trained medical staff. Most countries fund health services through a combination of government tax revenue and household spending. In poorer nations, that household contribution places the financial weight directly on pregnant women and their families throughout the duration of pregnancy.

  The United Nations set a target under the Sustainable Development Goals: reduce the global maternal mortality ratio to fewer than 70 deaths per 100,000 live births by 2030. Reaching it will require political commitment that, as of the most recent assessments, remains insufficient.

• 4. The STI Burden

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  In 2020, the World Health Organization estimated 374 million new infections with just four sexually transmitted infections: chlamydia at 129 million, gonorrhoea at 82 million, syphilis at 7.1 million, and trichomoniasis at 156 million. More than 490 million people were living with genital herpes as of 2016. An estimated 300 million women carry HPV, the primary cause of cervical cancer and anal cancer in men who have sex with men.

  A study conducted at Oxford University in 2015 found that even when HIV-positive individuals received early antiviral medications, those patients still cost an estimated $256 billion over two decades. HIV testing at modest rates could reduce new HIV infections by 21%, HIV retention by 54%, and HIV mortality by 64%, at a cost-effectiveness ratio of $45,300 per quality-adjusted life year.

  In Sub-Saharan Africa, the CDC notes that rates of sexually transmitted infections are five to eight times higher in the Black community compared to non-Hispanic White people. Women under 30 in that region account for more than half of new HIV infections on the African continent. Young African American women in the United States face elevated STI risk as well; research outside Atlanta, Georgia found that college graduates in that population were far less likely to carry an STI, suggesting that education status meaningfully alters vulnerability.

  Evidence now shows that recognizing the role of sexual pleasure in people's lives, and incorporating that recognition into health services and education, increases condom use and produces better health outcomes. South Africa's national policy includes that approach, pairing HIV counseling and testing with screening for tuberculosis, cervical cancer, and breast cancer.

• 5. Contraception and Its Obstacles

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  In developing regions, approximately 214 million women want to avoid pregnancy but cannot access safe and effective family planning. The combined oral contraceptive pill, when taken correctly, is over 99% effective at preventing pregnancy. Two forms of combined oral contraceptives appear on the World Health Organization's List of Essential Medicines. And yet access remains deeply uneven.

  Women are sometimes unable to leave their homes without a male relative or husband. Conscientious objections from doctors, pharmacists, and other health workers block access in countries where contraception is legally permitted. The Quiverfull movement opposes even natural family planning methods on the grounds that procreation should be maximized. Coitus interruptus, one of the oldest methods available, remains widely used in the developing world precisely because other options are out of reach.

  The arguments against contraception have taken many forms over many decades. In 1968, the position was advanced that birth rates were already at their lowest point since the end of World War II, and therefore birth control was unnecessary. That same year, Humanae Vitae set out the Catholic Church's position that birth control undermines natural law. Cardinal Mercier of Belgium argued that large families are simply the best, and that duties of conscience outrank worldly considerations. Romania under Nicolae Ceaușescu went further: abortion and contraception were outlawed, women faced routine pregnancy tests, and childless people were subject to legal discrimination and additional taxes.

  Africa has the lowest contraceptive use rate of any region at 33%, and the highest unmet need at 22%. In Mozambique, the unmet need stands at 26%, while among girls aged 15 to 19, contraceptive prevalence in 2015 was only 14%. Community figures including elders and religious leaders sometimes spread misinformation, including the claim that condoms and contraceptive pills contain microorganisms that cause cancer. Women in many contexts secretly use contraception to avoid spousal or family pressure to stop.

• 6. Female Genital Mutilation

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  More than 200 million women and girls worldwide have undergone female genital mutilation. The practice is concentrated in 30 countries across Africa, the Middle East, and Asia, with the most severe forms clustered in Djibouti, Eritrea, Ethiopia, Somalia, and Sudan.

  The WHO classifies FGM into four types. Type I is the removal of all or part of the clitoris. Type II adds the removal of the labia minora and sometimes the labia majora. Type III involves removing both inner and outer labia and sealing the wound, leaving only a narrow opening. Type IV covers all other harmful procedures performed on female genitalia for non-medical purposes.

  FGM is typically performed by an elder or community leader as part of a traditional ceremony. The procedure is most commonly performed on prepubescent girls, though the age varies by culture. Some communities frame it as a coming-of-age ritual and link it to ideals of female beauty, hygiene, and faithfulness within marriage.

  There are no health benefits. The procedure causes severe pain, shock, hemorrhage, and risk of tetanus or sepsis. Sexual problems are 1.5 times more likely in women who have undergone FGM, and those women are twice as likely to report a lack of sexual desire. Maternal and fetal death rates are significantly elevated during childbirth as a result. A 2018 study found elevated cortisol levels in women who had undergone FGM, particularly in those who experienced more severe procedures at an early age, indicating heightened risk of PTSD and other trauma disorders.

  The Istanbul Convention prohibits FGM at Article 38. A 2016 survey of 30 countries found that 24 had policies to manage and prevent the practice, but funding, education, and resources were often inconsistent. Niger holds the highest global rate of child marriage under age 18, and Bangladesh holds the highest rate of marriage for girls under 15. Both practices are connected to FGM in contexts where controlling female sexuality is the underlying purpose.

• 7. Abortion in Law and Practice

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  Globally, an estimated 25 million unsafe abortions occur each year. The vast majority take place in developing countries across Africa, Asia, and Latin America. In 2005, it was estimated that between 19 and 20 million abortions had complications, some of them permanent, and that approximately 68,000 women died from unsafe procedures that year.

  The legal landscape is fragmented and contested. The Maputo Protocol, adopted by the African Union, is the first international treaty to recognize abortion as a woman's human right in specific circumstances, including sexual assault, rape, incest, and when pregnancy endangers the mother's mental or physical health. The Human Rights Committee's General Comment No. 36, adopted in 2018 on the right to life under the International Covenant on Civil and Political Rights, defined for the first time a human right to abortion in certain circumstances, though as a non-binding piece of soft law.

  In 2008, the Parliamentary Assembly of the Council of Europe, comprising members from 47 European countries, passed a resolution calling for decriminalization of abortion within reasonable gestational limits. The vote was 102 to 69.

  When delegates negotiated the Cairo Programme of Action at the 1994 International Conference on Population and Development, abortion was so contentious that they omitted any recommendation to legalize it, settling instead for language about post-abortion care and preventing unwanted pregnancies.

  In the United States, two events are frequently cited as turning points in public opinion. Sherry Finkbine, denied an abortion by the board of obstetrician-gynecologists at her local hospital, was forced to travel to Sweden. The rubella outbreak of the 1950s and 1960s, which caused fetal deformities, led California to pass the Therapeutic Abortion Act in 1967, permitting abortion where pregnancy posed a risk to the woman's physical or mental health. Nearly half of all pregnancies in the United States are unintended, and over half of those unintended pregnancies end in abortion. Latin America, strongly influenced by the Catholic Church, has the strictest abortion laws of any region in the world.

• 8. Reproductive Hazards at Work

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  Workplace exposure is among the least-discussed dimensions of reproductive health, yet it affects both women and men across their reproductive years. More than 1,000 workplace chemicals have been shown to cause reproductive effects in animals, though most have not been studied in humans. Most of the 4 million other chemical mixtures in commercial use remain untested.

  Harmful substances enter the body through inhalation, skin contact, or ingestion. Some chemicals circulate in the mother's blood and pass through the placenta. Radiation can pass directly through the mother's body to affect eggs or the developing fetus. Some drugs and chemicals pass through breast milk. Workers can also carry hazardous substances home on clothing, skin, hair, or tools, exposing family members, including young children, to risks like lead poisoning.

  Exposure to pesticides, polychlorinated biphenyls, organic solvents, jet fuel, and carbon disulfide can disrupt the balance between the brain, pituitary gland, and ovaries, producing hormonal imbalances that alter menstrual cycle length and ovulation. About 10% to 15% of all couples are infertile or have subfertility. Cancer treatment drugs, lead, ionizing radiation, and nitrous oxide are among the documented hazards that reduce female fertility.

  About one in every six pregnancies ends in miscarriage, and about 7% of babies in the United States are born underweight or prematurely. About 2% to 3% of babies are born with a major birth defect, with the most sensitive developmental window falling during the first three months of pregnancy. About 10% of children in the United States have some form of developmental disability.

  For men, documented occupational hazards include lead, dibromochloropropane, ethylene dibromide, mercury vapor, high levels of radiation, and carbon disulfide, which can damage sperm count, shape, transfer, chromosomal integrity, and sexual performance. Exposure levels considered safe for non-pregnant adults may not protect a developing fetus, a gap in regulatory standards that public health researchers have continued to flag.