Medically reviewed by Cordelia Nwankwo, MD Key Takeaways Breast development usually starts about two years before the first ...

Girls in the U.S. are getting their first menstrual period about 6 months earlier on average than they did in the 1950s and '60s. And more girls are beginning menstruation before the age of 9, which ...

For girls, starting their period is inevitable. But the age when a child’s period begins, called menarche, can tell them a little about their health later in life. Menarche that begins “anytime ...

Childhood looks different for our kids. Not only from the outside — more technology, more Sephora shopping sprees — but from the inside, too. Children are hitting puberty earlier than previous ...

A growing number of children are showing signs of puberty at significantly younger ages than the average. Yet many families may face hurdles in getting diagnoses. Jennifer Benton’s daughter was just 5 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The first few times you get your period, it’s totally normal to feel caught off-guard. (But, ofc, not ...