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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.

The findings from a recent study also suggest that menstruating younger, especially at age 10 or less, may increase stroke risk. In the women who developed diabetes, there was also an association ...

A first menstrual cycle usually occurs between the ages of 10 and 16 with the average age of a first period being 12.4 years old. That’s a pretty wide range, so how do you know when your kid needs ...

My Period: We're getting personal about our periods. The path to menstrual equity starts with talking about it. These significant life moments that we have in our bodies help to frame how we identify ...

Girls are getting their first periods at a younger age, according to a new study. Research conducted by Harvard University's public health school found that, in the US, the time of a person's first ...

The timing of your first period offers important clues about your hormonal health and future fertility. Whether menarche occurs early or late, it may indicate underlying hormonal health, affecting ...

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.

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 ...

Share on Pinterest Research shows that girls are getting their first period earlier than in previous decades, which may be tied to rising obesity rates. MStudioImages/Getty Images A new study finds ...