A female’s first menstrual period, known as menarche, occurs during puberty. Menstruation indicates that the body is mature enough for reproduction. About 98% of girls begin their periods by age 15.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study out of Brazil links early or late menstruation onset to health struggles later in life. How the timing of your first ...

Here’s what you need to know, straight from gynecologists.

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, ...

More than 65 percent of women ages 15 to 49 in the United States use some form of birth control, and many of them are on hormonal birth control methods like the pill, patch, ring, implant, injections, ...