menarche

Menarche — pronounced “meh-naa-kee” — is the first time a person menstruates. In other words, their first period. Described as “the most definitive sign of puberty” in people with a uterus and vagina, it occurs approximately every 28 days and lasts between 2 and 7 days each time. Menarche (and any period after that) is […]