Menstruation usually begins around two years after breast development, often between the ages of 12 and 13. This first period is called menarche. The menstrual cycle typically spans about four weeks, ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A quick scan across TikTok will reveal the truly terrible reputation the luteal phase—or the last two ...

Girls in the United States are getting their periods earlier, and it's taking longer for them to become regular, according to a study. The age at which women get their first period, known ...

Women who cross the age of 30 may undergo some physical changes, including hormonal imbalances. There are a few key signs ...