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Article

Ndola Prata and Karen Weidert

Adolescence, spanning 10 to 19 years of age, begins with biological changes while transitioning from a social status of a child to an adult. For millions of adolescents in low- and middle-income countries (LMICs), this is a period of exposure to vulnerabilities and risks related to sexual and reproductive health (SRH), compounded by challenges in having their SHR needs met. Globally, adolescent sexual and reproductive ill-health disease burden is concentrated in LMICs, with sexually transmitted infections and complications from pregnancy and childbirth accounting for the majority of the burden. Adolescents around the world are using their voices to champion access to high-quality, comprehensive SRH information and services. Thus, it is imperative that adolescents’ SRH and rights be reinforced and that investments in services be prioritized.

Article

Lillian Abracinskas and Santiago Puyol

As time goes by, the world experiences advances and setbacks in the field of sexual and reproductive health and rights. But new challenges appear in terms of professional performance and implementation of services created by newer laws and policies. The development of new ethical frames in dialogue with disputed value systems is one of the main obstacles to ensuring universal access and comprehensive services to guarantee the exercise of these rights. Since 2002, Uruguay has been one of the few countries in Latin America and the Caribbean that has achieved significant advances regarding sexual and reproductive rights by recognizing them as human rights. The passage of several laws has resulted in the implementation of programs in SRHS and legal abortion as being considered mandatory for the National Health System. The follow-up and monitoring of this process by the Observatory of Mujer y Salud en Uruguay (MYSU) has demonstrated how changes in the legal framework led to a new stage for health-care providers, politicians, and decision makers and also for the social movement that has historically advocated for this agenda, all now facing new problems and challenges—some of which are completely unexpected. The high prevalence of conscientious objection exercised by physicians and OB/GYNs in refusing the provision of care in SRHS is one of the ethical dilemmas that needs to be discussed to innovate solutions to the problems and promote best practices from a gender equity and human rights paradigm.

Article

Marie Thoma, Jasmine Fledderjohann, Carie Cox, and Rudolph Kantum Adageba

Infertility remains a neglected area in sexual and reproductive health, yet its consequences are staggering. Infertility is estimated to impact about 10–25% (estimates range from 48 to 180 million) of couples of reproductive age worldwide. It is associated with adverse physical and mental health outcomes, financial distress, severe social stigma, increased risk of domestic abuse, and marital instability. Although men and women are equally likely to be infertile, women often bear the societal burden of infertility, particularly in societies where a woman’s identity and social value are closely tied to her ability to bear children. Despite these consequences, disparities in access to infertility treatment between low- and high-income populations persist given the high cost and limited geographic availability of diagnostic services and assisted reproductive technologies. In addition, a considerable proportion of infertility is a result of preventable factors, such as smoking, sexually transmitted infections, pregnancy-related infection or unsafe abortion, and environmental contaminants. Accordingly, programs that address the equitable prevention and treatment of infertility are not only in keeping with a reproductive rights perspective but can also improve public health. However, progress on infertility as a global concern in the field of sexual and reproductive health and rights is stymied by challenges in understanding the global epidemiology of infertility, including its causes and determinants, barriers to accessing quality fertility care, and a lack of political will and attention to this issue. The tracking and measurement of infertility are highly complex, resulting in considerable ambiguity about its prevalence and stratification in reproduction globally. A renewed global focus on infertility epidemiology, risk factors, and access to and receipt of quality of care will support individuals in trying to reach their desired number and spacing of children and improve overall health and well-being.

Article

Amira M. Khan, Zohra S. Lassi, and Zulfiqar A. Bhutta

Nearly 80% of the world’s population lives in low- and middle-income countries (LMICs) and these regions bear the greatest burden of maternal, neonatal, and child mortality, with most of the deaths occurring at home. Much of global maternal and child mortality is attributable to easily preventable and treatable conditions. However, the challenge lies in reaching the most vulnerable communities, especially the rural populations, making it imperative that maternal, newborn, and child health (MNCH) interventions focus on communities in tandem with facility-based strategies. There is widespread consensus that delivering effective primary health care (PHC) interventions through the continuum of care, starting from pregnancy to delivery and then to the newborn, infant, and the young child, is an integral component of health strategies in high-, middle- and low-income settings. Despite gaps in research, several effective community-based PHC approaches have been proven to impact MNCH positively. Implementation of these strategies is needed at scale in LMICs and in partnership with all stakeholders including the public and private sector. Community-based PHC, operating on the principles of community engagement and community mobilization, is now more critical than ever. Further robust studies are needed to evaluate certain strategies of community-based PHC and their impact on maternal and child health outcomes, such as the use of mobile technology and social franchises. Recognition of community health workers (CHWs) as a formal cadre and the integration of community-based health services within PHC are vital in strengthening efforts to impact maternal, neonatal, and child health outcomes positively. However, despite the importance of community-based PHC for MNCH in LMICs, the existence of a strong health system and skilled workforce is central to achieving positive health outcomes in these regions.

Article

Ine Vanwesenbeeck

Comprehensive sexuality education (CSE) is increasingly accepted as the most preferred way of structurally enhancing young peoples’ sexual and reproductive well-being. A historical development can be seen from “conventional,” health-based programs to empowerment-directed, rights-based approaches. Notably the latter have an enormous potential to enable young people to develop accurate and age-appropriate sexual knowledge, attitudes, skills, intentions, and behaviors that contribute to safe, healthy, positive, and gender-equitable relationships. There is ample evidence of program effectiveness, provided basic principles are adhered to in terms of content (e.g., adoption of a broad curriculum, including gender and rights as core elements) and delivery (e.g., learner centeredness). Additional and crucial levers of success are appropriate teacher training, the availability of sexual health services and supplies, and an altogether enabling (school, cultural, and political) context. CSE’s potential extends far beyond individual sexual health outcomes toward, for instance, school social climates and countries’ socioeconomic development. CSE is gaining worldwide political commitment, but a huge gap remains between political frameworks and actual implementation. For CSE to reach scale and its full potential, multicomponent approaches are called for that also address social, ideological, and infrastructural barriers on international, national, and local levels. CSE is a work never done. Current unfinished business comprises, among others, fighting persevering opposition, advancing equitable international cooperation, and realizing ongoing innovation in specific content, delivery, and research-methodological areas.

Article

Globally, countries have followed demographic transition theory and transitioned from high levels of fertility and mortality to lower levels. These changes have resulted in the improved health and well-being of people in the form of extended longevity and considerable improvements in survival at all ages, specifically among children and through lower fertility, which empowers women. India, the second most populous country after China, covers 2.4% of the global surface area and holds 18% of the world’s population. The United Nations 2019 medium variant population estimates revealed that India would surpass China in the year 2030 and would maintain the first rank after 2030. The population of India would peak at 1.65 billion in 2061 and would begin to decline thereafter and reach 1.44 billion in the year 2100. Thus, India’s experience will pose significant challenges for the global community, which has expressed its concern about India’s rising population size and persistent higher fertility and mortality levels. India is a country of wide socioeconomic and demographic diversity across its states. The four large states of Uttar Pradesh, Bihar, Madhya Pradesh, and Rajasthan accounted for 37% of the country’s total population in 2011 and continue to exhibit above replacement fertility (that is, the total fertility rate, TFR, of greater than 2.1 children per woman) and higher mortality levels and thus have great potential for future population growth. For example, nationally, the life expectancy at birth in India is below 70 years (lagging by more than 3 years when compared to the world average), but the states of Uttar Pradesh and Rajasthan have an average life expectancy of around 65–66 years. The spatial distribution of India’s population would have a more significant influence on its future political and economic scenario. The population growth rate in Kerala may turn negative around 2036, in Andhra Pradesh (including the newly created state of Telangana) around 2041, and in Karnataka and Tamil Nadu around 2046. Conversely, Uttar Pradesh, Bihar, Madhya Pradesh, and Rajasthan would have 764 million people in 2061 (45% of the national total) by the time India’s population reaches around 1.65 billion. Nationally, the total fertility rate declined from about 6.5 in early 1960 to 2.3 children per woman in 2016, a result of the massive efforts to improve comprehensive maternal and child health programs and nationwide implementation of the national health mission with a greater focus on social determinants of health. However, childhood mortality rates continue to be unacceptably high in Uttar Pradesh, Bihar, Rajasthan, and Madhya Pradesh (for every 1,000 live births, 43 to 55 children die in these states before celebrating their 5th birthday). Intertwined programmatic interventions that focus on female education and child survival are essential to yield desired fertility and mortality in several states that have experienced higher levels. These changes would be crucial for India to stabilize its population before reaching 1.65 billion. India’s demographic journey through the path of the classical demographic transition suggests that India is very close to achieving replacement fertility.

Article

Despite the passage of the Americans with Disabilities Act (ADA) more than 30 years ago, people with disabilities experience significant barriers to exercising their right to sexual and reproductive health throughout their life course. The historical segregation and stigmatization of disabled individuals has created the conditions in which members of this population experience persistent disparities in the prevalence of adverse health conditions and inadequate attention to care, along with disparities in preventive care, health promotion, and access to health care services. These disparities manifest in social services and health care generally and also in the sphere of sexual and reproductive health. Among many direct care workers, health care providers, and family members, assumptions persist that individuals with disabilities are asexual, unable to exercise informed consent to sexual activity, and unable to carry a pregnancy to term or to parent successfully. These assumptions adversely affect the ability of individuals with disabilities to access basic information about their sexual health and function in order to make informed decisions about their sexual activity, and also impact their access to preventive health screening, contraception, and perinatal care. Inadequate transportation and physically inaccessible environments and equipment such as examination tables pose additional barriers for some disabled individuals. A lack of training in disability-competent care among health care professionals is a pervasive problem and presents yet another challenge to obtaining appropriate and necessary information and care. Despite these barriers, the research shows that more and more women with disabilities are having children, and there is an increasing recognition that people with disabilities have a right to sexual expression and appropriate sexual and reproductive health care , accompanied by a gradual evolution among social services and health care providers to provide the necessary information and support.

Article

Yuelong Ji, Ramkripa Raghavan, and Xiaobin Wang

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by impairments in social interaction and communication and by the presence of restrictive, repetitive behavior. Attention deficit hyperactivity disorder (ADHD) is another common lifelong neurodevelopmental disorder characterized by three major presentations: predominantly hyperactive/impulsive, predominantly inattentive, and combined. Although ASD and ADHD are different clinical diagnoses, they share various common characteristics, including male dominance, early childhood onset, links to prenatal and perinatal factors, common comorbidity for each other, and, often, persistence into adulthood. They also have both unique and shared risk factors, which originate in early life and have lifelong implications on the affected individuals and families and society. While genetic factors contribute to ASD and ADHD risk, the environmental contribution to ASD and ADHD has been recognized as having potentially equal importance, which raises the hope for early prevention and intervention. Maternal folate levels, maternal metabolic syndrome, and metabolic biomarkers have been associated with the risk of childhood ASD; while maternal high-density lipoprotein, maternal psychosocial stress, and in utero exposure to opioids have been associated with the risk of childhood ADHD. As for shared factors, male sex, preterm birth, placental pathology, and early life exposure to acetaminophen have been associated with both ASD and ADHD. The high rate of comorbidity of ASD and ADHD and their many shared early life risk factors suggest that early identification and intervention of common early life risk factors may be cost-effective to lower the risk of both conditions. Efforts to improve maternal preconception, prenatal, and perinatal health will not only help reduce adverse reproductive and birth outcomes but will also help mitigate the risk of ASD and ADHD associated with those adverse early life events.

Article

Tim Shand and Arik V. Marcell

Engaging men in sexual and reproductive health (SRH) across the life span is necessary for meeting men’s own SRH needs, including: prevention of STIs, HIV, unintended pregnancy, and reproductive system cancers; prevention and management of infertility and male sexual dysfunction; and promotion of men’s sexual health and broader well-being. Engaging men is also important given their relationship to others, particularly their partners and families, enabling men to: equitably support contraceptive use and family planning and to share responsibilities for healthy sexuality and reproduction; improve maternal, newborn, and child health; prevent mother-to-child transmission of HIV; and advocate for sexual and reproductive rights for all. Engaging men is also critical to achieving gender equality and challenging inequitable power dynamics and harmful gender norms that can undermine women’s SRH outcomes, rights, and autonomy and that can discourage help- and health-seeking behaviors among men. Evidence shows that engaging men in SRH can effectively improve health and equality outcomes, particularly for women and children. Approaches to involving men are most effective when they take a gender transformative approach, work at the personal, social, structural, and cultural levels, address specific life stages, and reflect a broad approach to sexuality, masculinities, and gender. While there has been growth in the field of men’s engagement since 2010, it has primarily focused on men’s role as supportive to their partners’ SRH. There remains a gap in evidence and practice around better engaging men as SRH clients and service users in their own right, including providing high-quality and accessible male-friendly services. A greater focus is required within global and national policy, research, programs, and services to scale up, institutionalize, and standardize approaches to engaging men in SRH.

Article

Sarka Lisonkova and K. S. Joseph

Fetal death refers to the death of a post-embryonic product of conception while in utero or during childbirth, and it is one of the most distressing events faced by women and families. Birth following spontaneous fetal death is termed “miscarriage” if it occurs early in gestation, and “stillbirth,” if it occurs beyond the point of viability. There are substantial between-country differences in the criteria used for reporting stillbirths and these differences compromise international comparisons of stillbirth rates. In high-income countries, a majority of fetal deaths occur due to genetic causes, fetal infection, or other pregnancy complications. Congenital anomalies, placental insufficiency, and/or intrauterine growth restriction are frequent antecedents of fetal death. Maternal risk factors include advanced maternal age, high body mass index, smoking and substance use during pregnancy, prior stillbirth, chronic morbidity, and multifetal pregnancy. Disparities in education and socioeconomic status and other factors influencing maternal health also contribute to elevated rates of stillbirth among vulnerable women.

Article

Suzanne O. Bell, Mridula Shankar, and Caroline Moreau

Induced abortion is a common reproductive experience, with more than 73 million abortions occurring each year globally. Worldwide, the annual abortion incidence decreased in the 1990s and the early decades of the 21st century, but this decline has been driven by high-resource settings, whereas abortion rates in low- and middle-resource countries have remained stable. Induced abortion is a very safe procedure when performed according to World Health Organization guidelines; however, legal restrictions, stigma, cost, lack of resources, and poor health system accountability limit the availability, accessibility, and use of quality abortion care services. Even as women’s use of safer self-managed medication abortion options becomes more common in some parts of the world, 45% of all abortions annually are unsafe, nearly all of which occur in low- and middle-resource settings, where unsafe abortion remains a primary cause of maternal death. Beyond country-level legal and health care system factors, significant disparities exist in women’s reliance on unsafe abortion. Even among women who receive a safe abortion, quality of care is often poor. Yet abortion’s precarious status as a health care service and its clandestine practice have precluded a systematic focus on quality monitoring and evaluation of service inputs. Improving abortion and postabortion care quality is essential to meeting this reproductive health need, as are efforts to prevent abortion-related mortality and morbidity more broadly. This requires a three-tier approach: primary prevention to reduce unintended pregnancy, secondary prevention to make abortion procedures safer, and tertiary prevention to reduce the negative sequelae of unsafe abortion procedures. Strategies include two complementary approaches: vulnerability reduction and harm reduction, the first focusing on the root causes of unsafe abortion by addressing the determinants of unwanted pregnancy and clandestine abortion, while the latter addresses the harmful consequences of clandestine abortion. Political commitments to extend service coverage of abortion and postabortion care need to be implemented through actions that build the public health system’s capacity. Beyond the model of receiving care exclusively in clinical settings, models of guided self-managed abortion are expanding the capacity of individuals to take evidence-based actions to terminate their pregnancies safely and without the threat of judgment. Research has strived to keep up with the changes in the abortion care landscape, but there remains a continuing need to improve methodologies to generate robust evidence to identify and address inequities in abortion care and its health consequences in a diversified landscape. Doing so will provide information for stakeholders to take actions toward a new era of health care reforms that repositions abortion as an integral component of sexual and reproductive health care.

Article

Ralph J. DiClemente and Nihari Patel

At the end of 2016, there were approximately 36.7 million people living with HIV worldwide with 1.6 million people being newly infected. In the same year, 1 million people died from HIV-related causes globally. The vast prevalence of HIV calls for an urgent need to develop and implement prevention programs aimed at reducing risk behaviors. Bronfenbrenner’s socio-ecological model provides an organizing framework to discuss HIV prevention interventions implemented at the individual, relational, community, and societal level. Historically, many interventions in the field of public health have targeted the individual level. Individual-level interventions promote behavior change by enhancing HIV knowledge, attitudes, and beliefs and by motivating the adoption of preventative behaviors. Relational-level interventions focus on behavior change by using peers, partners, or family members to encourage HIV-preventative practices. At the community-level, prevention interventions aim to reduce HIV vulnerability by changing HIV-risk behaviors within schools, workplaces, or neighborhoods. Lastly, societal interventions attempt to change policies and laws to enable HIV-preventative practices. While previous interventions implemented in each of these domains have proven to be effective, a multipronged approach to HIV prevention is needed such that it tackles the complex interplay between the individual and their social and physical environment. Ideally, a multipronged intervention strategy would consist of interventions at different levels that complement each other to synergistically reinforce risk reduction while simultaneously creating an environment that promotes behavior change. Multilevel interventions provide a promising avenue for researchers and program developers to consider all levels of influences on an individual’s behavior and design a comprehensive HIV risk-reduction program.

Article

Michael T. Mbizvo and Tendai M. Chiware

Male reproductive function entails complex processes, involving coordinated interactions between molecular structures within the gonadal and hormonal pathways, tightly regulated by the hypothalamic–pituitary gonadal axis. Studies in men and animal models continue to unravel these processes from embryonic urogenital development to gonadal and urogenital ducts function. The hypothalamic decapeptide gonadotropin-releasing hormone is released into the hypophyseal portal circulation in a pulsatile fashion. It acts on the gonadotropes to produce the gonadotropins, the main trophic hormones acting on the testis to regulate sperm production. This endocrine control is complemented by paracrine and autocrine regulation arising from the testis, where germ cells originate, modulated by growth factors and local regulators arising within the testis. The process of spermatogenesis, originating in seminiferous tubules, is characterized by stem cell proliferation and differentiation, meiotic divisions, expression of transcriptional regulators, through to morphological changes which include cytoplasm reorganization and flagellum development. Metabolic processes and signal transduction pathways facilitate the functional motion and transport of sperm to the site of fertilization. The normal sperm structure or morphology acquired during spermatogenesis, epididymal maturation, sperm capacitation including motility, and subsequent acrosome reaction are all critical events in the acquisition of sperm fertilizing ability. Generation of the male gamete is assured through adequate gonadal function, involving complex differentiation processes and regulation, during spermiogenesis and spermatogenesis. Sperm functional changes are acquired during epididymal transit, and functional motion is maintained in the female reproductive tract, involving activation of signaling processes and transduction pathways. Infertility can arise in the male, from spermatogenic failure, sperm functional quality, obstruction and other factors, but causes remain unknown in a large proportion of affected men. Semen analysis, complemented by the clinical picture, remains the mainstay of male infertility investigation. Assisted reproductive technology has proved useful in instances where the cause is not treatable. Complications from sexually transmitted infections could lead to male infertility, by impairing sperm quality, production, or transport through the reproductive tract. Male fecundity denotes the biological capacity of men to reproduce, based on ability to ejaculate normal sperm. Lifestyle, environmental, and endocrine disruptors have been implicated in reduced male fecundity. Interactions between vascular, neurological, hormonal, and psychological factors confer normal sexual function in men. Nocturnal erections begin in early puberty, occurring with REM sleep. Sexual health is an integral part of sexual and reproductive health, while sexual dysfunction, in various forms, is also experienced by some men. Methods of contraception available to men are few, and underused. They include condoms and vasectomy. Enhanced knowledge of male reproductive function and underlying physiological mechanisms, including sperm transit to fertilization, can be catalytic in improvements in assisted reproductive technologies, male infertility diagnosis and treatment, and development of contraceptives for men. The article reviews the processes associated with male reproductive function, dysfunction, physiological processes and infertility, fecundity, approaches to male contraception, and sexual health. It further alludes to knowledge gaps, with a view to spur further research impetus towards advancing sexual and reproductive health in the human male.

Article

Roger Shrimpton

Malnutrition is caused by consuming a diet with either too little and/or too much of one or more nutrients, such that the body malfunctions. These nutrients can be the macronutrients, including proteins, carbohydrates, and fats that provide the body with its building blocks and energy, or the micronutrients including vitamins and minerals, that help the body to function. Infectious diseases, such as diarrhea, can also cause malnutrition through decreased nutrient absorption, decreased intake of food, increased metabolic requirements, and direct nutrient loss. A double burden of malnutrition (both overnutrition and undernutrition) often occurs across the life course of individuals and can also coexist in the same communities and even the same households. While about a quarter of the world’s children are stunted, due to both maternal and young child undernutrition, overweight and obesity affects about one in three adults and one in ten children. Anemia, most commonly due to iron deficiency, is also affecting about a third of women of reproductive age and almost half of preschool children. Around 90% of nations have a serious burden of either two or three of these different forms of malnutrition. Malnutrition is one of the principal and growing causes of global disease and mortality, affecting at least half of the world’s inhabitants. Programs for tackling maternal and child undernutrition have gained impetus in the last decade with a consensus developing around a package of effective interventions. The nutrition-specific interventions, mostly delivered through the health sector, are directed at immediate levels of causality, while nutrition-sensitive interventions, directed at the underlying and basic levels of causality are delivered through other sectors such as agriculture, education, social welfare, as well as water and sanitation. Less consensus exists around the interventions needed to reduce overnutrition and the associated non-communicable diseases (NCDs), including diabetes, high blood pressure, and coronary heart disease. Prevention is certainly better than cure, however, and creating enabling environments for healthy food choices seems to be the most promising approach. Achieving “healthy diets for all,” by reducing consumption of meat and ultra-processed foods, as well as increasing consumption of fruit and vegetables, would help control rising rates of obesity and reduce NCD mortality. Adopting such healthy diets would also greatly contribute to reducing greenhouse gas emissions: the agriculture sector is responsible for producing a third of emissions, and a reduction on livestock farming would contribute to reducing global warming. Public health nutrition capacity to manage such nutrition programs is still widely lacking, however, and much still needs to be done to improve these programs and their governance.

Article

Chi Chiung Grace Chen and René Génadry

Obstetric fistula (OF) is a condition that remains prevalent in non-industrialized nations, mainly in sub-Saharan Africa and Southeast Asia where proper and timely obstetrical care is inaccessible, unavailable, or inadequate. The reasons for the delay vary from country to country where poverty remains a common thread, and understanding the many factors leading to the development of OF is critical in preventing this scourge that has been all but eliminated in industrialized nations. Preventive measures can be effective when developed in conjunction with local resources and expertise and should include patient education and empowerment in addition to educating and equipping healthcare providers. In the absence of such measures, patients develop an « obstructed labor injury complex » involving the genital, urinary, and gastrointestinal tracts. Many troublesome health consequences arise from this complex, including skin lesions from the caustic effects of urine, endocrine abnormalities such as amenorrhea and infertility, neuropsychological consequences such as depression and suicide, and musculoskeletal impairments such as foot drop and contractures. Globally, evidence-based interventions are needed to address the debilitating and persistent medical, psychological, and social effects of this condition on its sufferers. While surgery offers the amelioration of symptoms, many patients may not have access to such care due to lack of funds, knowledge of surgical options, or availability of surgical facility. Even after successful repair of the fistula, patients may still suffer from persistent incontinence, stigma, and socio-economic hardship requiring special programs for support, rehabilitation, and reintegration. Additionally, the patients who are deemed inoperable require special counseling and care. Consensus is needed on standardizing care and outcome measures to improve the quality of care and to evaluate programs directed toward prevention that will render this condition obsolete.

Article

The International Conference on Population and Development (ICPD), which has guided programming on sexual reproductive health and rights (SRHR) for 25 years, reinforced that governments have a role to play in addressing population issues but in ways that respect human rights and address social and gender inequities. The shift at ICPD was partly in response to excesses that had occurred in some family planning programs, resulting in human rights abuses. The 2012 London Summit on Family Planning refocused attention on family planning as a crucial component of SRHR and, in part due to significant pushback on the announcement of a goal of reaching an additional 120 million women and girls with contraception by 2020 in the world’s poorest countries, ignited work to ensure that programming to achieve this ambitious goal would be grounded in respecting, protecting, and fulfilling human rights. This attention to human rights has been maintained in Family Planning 2030 (FP2030), the follow on to Family Planning 2020 (FP2020). While challenges remain, particularly in light of pushback on reproductive rights, widespread work over the past decade to identify human rights principles and standards related to family planning, integrate them into programming, strengthen accountability, and incorporate rights into monitoring and evaluation has improved family planning programs.

Article

Ana Luiza Vilela Borges, Christiane Borges do Nascimento Chofakian, and Ana Paula Sayuri Sato

The focus on non-sexually transmitted infections during pregnancy is relevant, as they are one of the main causes of fetal and neonatal morbidity and mortality in many regions of the world, especially in low- and middle-income countries, respecting no national boundaries. While their possible vertical transmission may lead to adverse pregnancy outcomes, congenital rubella syndrome, measles, mumps, varicella, influenza, Zika virus, dengue, malaria, and toxoplasmosis are all preventable by measures such as vector control or improvement in sanitation, education, and socioeconomic status. Some are likewise preventable by specific vaccines already available, which can be administered in the first years of childhood. A package for intervention also includes adequate preconception care, routine antenatal screening, diagnosis, and treatment during pregnancy. Non-sexually transmitted diseases during pregnancy have different worldwide distributions and occasionally display as emerging or re-emerging diseases. Their epidemiological and clinical aspects, as well as evidence-based prevention and control measures, are relevant to settings with ongoing transmission or those about to be in vulnerable situations. Non-sexually transmitted infections are major public and global health concerns as potential causes of epidemics or pandemics, with numerous social, economic, and societal impacts..

Article

Colin Binns and Mi Kyung Lee

Breastfeeding is one of the best public health “buys” available for countries at all levels of development. In the first year of life, appropriate infant nutrition (exclusive breastfeeding to around 6 months) reduces infant mortality and hospital admissions by 50% or more. Early life nutrition has important influences, including on childhood illnesses, obesity, cognitive development, hospitalizations, and later chronic disease. Breastfeeding is consistent with the historical cultural practices of all societies, and its benefits of breastfeeding last a lifetime. While the development of infant formula has been of benefit to some infants, its inappropriate promotion has resulted in a decline of breastfeeding, and, as a result, health gains in many countries have not been as great as they could have been. The health benefits of breastfeeding will provide some protection against the effects of climate change, which will cause a decline in potable water supplies and increases in the incidence of some infections. Infant formula production has very high environmental costs, while breastfeeding as well as being the best infant feeding intervention also has very low environmental impact. An important part of the sustainable development agenda must be to promote breastfeeding and its benefits and to reverse the inappropriate promotion and use of infant formula.

Article

Justin C. Konje and Oladipo A. Ladipo

Central to the survival of any species is the ability to procreate. In most cases, procreation is sexual, involving a process that ensures appropriate and timed contact between the male and female gametes. Successful human reproduction is premised on sexual intercourse occurring at a time when there is a receptive endometrium as well as an ovum ready for fertilization by spermatozoa. This time window of the menstrual cycle known as the fertile or fecund window is poorly defined and highly variable from one individual to another. Furthermore, while spermatogenesis is a continuous process, the impact of too frequent intercourse (defined as that occurring more than every 2 to 3 days) on fertilization has often been thought to be associated with a decreased fertilization potential of spermatozoa. Current evidence challenges previously held views on the fertile window and how it is determined, the timing of intercourse and how it is related to conception and miscarriages, the length of the luteal phase, and the precise time period during which the chances of fertilization are highest in any given menstrual cycle. The ability of spermatozoa to survive in the female genital tract for 5 days means fertilization can occur up to 5 days from sexual intercourse. During each menstrual cycle, there is a window of 5 to 6 days for fertilization to occur, and this period is defined not by the length of the cycle but by the timing of ovulation, with the chances of fertilization highest with intercourse occurring 1 to 2 days before ovulation.

Article

Qianling Zhou, Chu-Yao Jin, and Hai-Jun Wang

Databases of PubMed, Scopus, and China National Knowledge Infrastructure (CNKI) were used to search relevant articles on sexual and reproductive health (SRH) in China published from 2005 to the present (2021), based on the World Health Organization’s (WHO) Operational Framework on Sexual Health and Its Linkages to Reproductive Health. The following results were found. (a) SRH education and information among the Chinese were insufficient, in particular regarding contraception, pregnancy, and sexually transmitted diseases (STDs). Adolescents, migrants, and the rural population had insufficient knowledge of SRH. (b) Fertility care services were mainly available in large cities, in urban areas, and for married couples. Services targeted for rural-to-urban migrants, rural residents, and the disabled and elderly are needed. (c) A total of 22.4% of youths aged 15–24 had premarital sexual intercourse, and the age of first sexual intercourse was decreasing. Risky sexual behaviors included multiple partners, casual and commercial sex, and having sex after drinking alcohol. (d) The contraceptive practice rate of women aged 15–49 in China was higher than the world’s corresponding figure. However, contraceptive use among young people was low (only 32.3% among unmarried women). (e) Unmarried pregnancy induced by low contraceptive practice is a critical issue in China. (f) Induced abortion was the major consequence of unmarried pregnancy. The rate of induced abortion among the general population in 2016 was 28.13‰, and the rate among unmarried women was increasing annually. (g) There were 958,000 HIV-infected cases in China as of October 2019. Sexual transmission was the major transmission route of HIV-AIDS. More men than women were infected. Men having sex with men comprised the high-risk group of sexual transmission of HIV-AIDS. (h) Gender-based violence including intimate partner violence (IPV), sexual violence, sexual coercion, and child sexual abuse (CSA) might be underreported in China, since many victims were afraid to seek help as well as due to limited services. Legal and regulatory measures should therefore be taken to prevent and reduce gender-based violence. For future perspectives of SRH in China, it is important to pay attention to SRH education and services. An up-to-date national survey on SRH is needed to reflect the current situation and to capture changes over the past decade. Most of the current research has been conducted among adolescents, and more studies are needed among other groups, such as the disabled, the elderly, and homosexual populations.