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.

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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 ...

Most people lose around 2–3 tablespoons of blood during their period. People with heavy periods may lose twice as much. Fatigue or weakness may be signs that a person is losing too much blood. This ...

The term “fertile window” describes the period of time in your menstrual cycle when conception is most likely to occur. Share on Pinterest Laflor/Getty Images Pregnancy happens when a sperm meets an ...

Puberty often begins at around 11 years old, although anywhere between about 8 and 14 is considered within the typical range. One of the hallmarks of puberty is getting a first period or beginning ...

Renita White, MD, is an obstetrician/gynecologist at Georgia Obstetrics and Gynecology in Atlanta, Georgia. Her areas of expertise include fibroids, irregular vaginal ...