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Menarche
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Female human's first menstrual cycle
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Wikipedia

Menarche ( mə-NAR-kee; from Ancient Greek μήν (mēn) 'month' and 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. Girls experience menarche at...

Instance of
Biological process
Medical findings
Subclass of
Menstruation
Part of
Puberty
References
Wikidata