Obstetrics & gynaecology

Around 1 in 5 women of childbearing age are living with [obesity], defined by the World Health Organization as having a body mass index (BMI) over 30 kg/m². Compared with women in the healthy BMI range (18.5–24.9 kg/m²), those living with obesity are three times more likely to experience fertility problems and nearly twice as likely to have a miscarriage. Many turn to in vitro fertilization (IVF) in the hope of having a baby.

Misleading birth control advice on TikTok is exposing young people to an increased risk of unplanned pregnancies, according to new research by La Trobe University.

Maternal and newborn deaths are rising globally, not just in low- and middle-income countries, but in wealthy nations too. Researchers have described the situation as a “global failure” and a “major scandal.”

A world-first estimate shows assisted reproductive technology (ART) is now part of everyday life for millions of families across the globe, with one ART-conceived baby born every 35 seconds.

Vaccination of pregnant women has been linked to a drop in newborns being admitted to hospital with a serious lung infection, research suggests.

Polycystic ovary syndrome (PCOS) is a hormonal imbalance that affects ovaries, periods and fertility in about one in 10 Canadian women. Different from ovarian cysts, PCOS is associated with infertility, pregnancy complications, heart disease and a general decreased quality of life, and yet fewer than half of those affected even know they have it.

In utero exposure to two liquid ingredients in e-cigarettes—minus the nicotine that drives addiction—can alter skull shape during fetal development, a new study in mice has found.

A young woman became a June bride months after surviving complex surgery to remove a 40-pound tumor from her body, Cedars-Sinai doctors report.

Northwestern Medicine has launched a program to help patients who have concerns related to obesity and are planning a pregnancy.

A grandfather’s exposure to endocrine-disrupting chemicals may impact the age when his granddaughter starts her first period, according to a study being presented Sunday at ENDO 2025, the Endocrine Society’s annual meeting in San Francisco, Calif.