Pregnancy over age 50

Pregnancy over age 50 has become more possible for women, due to recent advances in assisted reproductive technology, such as egg donation. Typically, a woman's fecundity ends with menopause, which by definition is 12 consecutive months without having had a period. Perimenopause usually begins between ages 40 and 51. This is when the periods become irregular and eventually stop altogether (men, in contrast, generally remain fertile throughout their lives,[1] although the risk of genetic defects is greatly increased due to the paternal age effect). Pregnancy over age 40 is associated with increased risks.

In the United States, between 1997 and 1999, 539 births were reported among mothers over age 50, 194 being over 55.[2] According to statistics from the Human Fertilisation and Embryology Authority, in Britain, more than 20 babies are born to women over age 50 per year through in-vitro fertilization.[3]

Contents

Medical considerations

Risks associated with childbearing over the age of 50 include an increased incidence of gestational diabetes, hypertension, delivery by caesarean section, miscarriage, preeclampsia, and placenta previa.[2][4] In comparison to mothers between 20 and 29 years of age, mothers over 50 are at almost three times the risk of low birth weight, premature birth, and extremely premature birth; their risk of extremely low birth weight, small size for gestational age, and fetal mortality was almost double.[5]

Cases of pregnancy over 50

Birth mothers over 50

Age 50 to 54

Age 55 to 59

Age 60 to 64

Age 65 to 69

Age 70 and older

Debate

Pregnancies among older women have been a subject of controversy and debate. Some argue against motherhood late in life on the basis of the health risks involved, or out of concern that an older mother might not be able or around to care for a child as she ages, while others contend that having a child is a fundamental right and that it is commitment to a child's wellbeing, not the parents' ages, that matters.[107][108][109]

A survey of attitudes towards pregnancy over age 50 among Australians found the 54.6% believed it was acceptable for a postmenopausal woman to have her own eggs transferred and that 37.9% believed it was acceptable for a postmenopausal women to receive donated ova or embryos.[110]

Governments have sometimes taken actions to regulate or restrict later-in-life childbearing. In the 1990s, France approved a bill which prohibited postmenopausal pregnancy, which the French Minister of Health at the time, Philippe Douste-Blazy, said was "...immoral as well as dangerous to the health of mother and child". In Italy, the Association of Medical Practitioners and Dentists prevented its members from providing women aged 50 and over with fertility treatment. Britain's then-Secretary of State for Health, Virginia Bottomley, stated, "Women do not have the right to have a child; the child has a right to a suitable home".[109] However, in 2005, age restrictions on IVF in the United Kingdom were officially withdrawn.[111]

Legal restrictions are only one of the barriers confronting women seeking IVF, as many fertility clinics and hospitals set age limits of their own.[97]

See also

References

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