Girls in the U.S. are getting their first period earlier than in decades past. Researchers say there are multiple factors causing early puberty, including obesity and environmental pollutants. Girls ...

A new study adds to the evidence that girls in America are reaching puberty earlier with potentially troubling implications for their long-term health. More girls are getting their first periods ...

Menstruation is a critical indicator of health. Whether and when someone with a uterus gets their period — for the first time, and throughout their life — can reflect not only their reproductive ...

If you purchase an independently reviewed product or service through a link on our website, SheKnows may receive an affiliate commission. “Red Drop was started out of my classroom,” Roberts, then a ...

SAN FRANCISCO—A grandfather’s exposure to endocrine-disrupting chemicals may impact the age when his granddaughter starts her first period, according to preliminary data being presented Sunday at ENDO ...

There is unexpectedly large variation in height growth in girls after their first period. Every second girl grows either more or less in length than the 6-8 centimeters that is considered standard.