Anaemia is a major global health problem for women.[132] Women are affected more than men, in which up to 30% of women being found to be anaemic and 42% of pregnant women. Anaemia is linked to a number of adverse health outcomes including a poor pregnancy outcome and impaired cognitive function (decreased concentration and attention).[133] The main cause of anaemia is iron deficiency. In United States women iron deficiency anaemia (IDA) affects 37% of pregnant women, but globally the prevalence is as high as 80%. IDA starts in adolescence, from excess menstrual blood loss, compounded by the increased demand for iron in growth and suboptimal dietary intake. In the adult woman, pregnancy leads to further iron depletion.[6]
There has been an international effort to reduce this practice, and in many countries eighteen is the legal age of marriage. Organizations with campaigns to end child marriage include the United Nations[97] and its agencies, such as the Office of the High Commissioner for Human Rights,[98] UNFPA,[99] UNICEF[91][93] and WHO.[95] Like many global issues affecting women's health, poverty and gender inequality are root causes, and any campaign to change cultural attitudes has to address these.[100] Child marriage is the subject of international conventions and agreements such as The Convention on the Elimination of All Forms of Discrimination against Women (CEDAW, 1979) (article 16)[101] and the Universal Declaration of Human Rights[102] and in 2014 a summit conference (Girl Summit) co-hosted by UNICEF and the UK was held in London (see illustration) to address this issue together with FGM/C.[103][104] Later that same year the General Assembly of the United Nations passed a resolution, which inter alia[105]
Important sexual health issues for women include Sexually transmitted infections (STIs) and female genital cutting (FGC). STIs are a global health priority because they have serious consequences for women and infants. Mother-to-child transmission of STIs can lead to stillbirths, neonatal death, low-birth-weight and prematurity, sepsis, pneumonia, neonatal conjunctivitis, and congenital deformities. Syphilis in pregnancy results in over 300,000 fetal and neonatal deaths per year, and 215,000 infants with an increased risk of death from prematurity, low-birth-weight or congenital disease.[74]

Micronutrient supplementation programs for vitamin A, iron and folic acid, calcium, zinc, and multiple micronutrients effectively impacted the micronutrient status of pregnant and lactating women, as well as women of reproductive age and adolescent girls (13, 14, 33, 35–48). Interventions making use of multiple micronutrients were more effective at changing plasma micronutrient concentrations than interventions focused solely on 1 nutrient alone (38, 42). In countries with comprehensive programs for iron supplementation during pregnancy, anemia prevalence dropped (1, 49). Positive health impacts of supplementation were most notable among pregnant women who were deficient and at risk of low intake (43, 50). However, there were some studies that showed inconsistent or limited evidence for the effectiveness of supplementation on other maternal health outcomes (31, 51–58).
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Recent research by the Centers for Disease Control and Prevention showed that ART babies are two to four times more likely to have certain kinds of birth defects. These may include heart and digestive system problems, and cleft (divided into two pieces) lips or palate. Researchers don't know why this happens. The birth defects may not be due to the technology. Other factors, like the age of the parents, may be involved. More research is needed. The risk is relatively low, but parents should consider this when making the decision to use ART.


Consult your health care professional. Women of childbearing age may want to consider taking folic acid supplements to reduce the risk of having a pregnancy affected with neural tube defects. Many women and teenage girls don't get enough calcium or vitamin D, both of which are critical to healthy bones and avoiding osteoporosis. Some people with diabetes appear to benefit from chromium. Vegetarians, especially vegans, may want to consider supplements to obtain nutrients they aren't getting from animal products.
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