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.
Liliana 'Lili' Castaneda, 14, was diagnosed with a rare vaginal cancer called clear cell carcinoma Becca Longmire is a digital news writer-reporter at PEOPLE. She has been working at PEOPLE since 2024 ...
Even if you’re not relying on a trusty cycle tracker, everyone has their sure-fire signs that their period is about to begin. Maybe you get a breakout or start to feel more sensitive. Me? I start to ...
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