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 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 ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Nancy Redd Nancy Redd is Wirecutter’s health and grooming writer. Her latest puberty book ...

Over the last 55 years, young girls in the US have been getting their first periods earlier and earlier. Nowadays, the average age is roughly 12. Some girls may menstruate as early as 8, according to ...

If you purchase an independently reviewed product or service through a link on our website, SheKnows may receive an affiliate commission. “Red Drop was started out of my classroom,” Roberts, then a ...