The onset of menstruation is a pivotal moment for young girls, heralding a time of significant physical and emotional growth.

The age you got your first period, also called menarche, is one of those milestones people remember forever. It feels loaded with meaning, and for good reason. Hormones, growth, fertility, and the ...

Are you at risk for heart disease or thyroid cancer? Ask Aunt Flo. Do you remember when you got your first period? If not, think harder because your doctor may soon be asking. In the last year, ...