what is the term for the onset of the first menstrual cycle
Menarche Menarche (/mɪˈnɑːrkiː/ mi-NAR-kee; Greek: μήν mēn "month" + ἀρχή arkhē "beginning") is the first menstrual cycle, or first menstrual bleeding, in female humans. From both social and medical perspectives, it is often considered the central event of female puberty, as it signals the possibility of fertility.
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