Primary ovarian insufficiency

/pɹˈaɪməɹi əʊvˈeəɹiən ɪnsəfˈɪʃənsi/

/pɹˈaɪmɚɹi oʊvˈɛɹiən ɪnsəfˈɪʃənsi/

a condition where the ovaries lose function before age 40, leading to hormonal imbalances, irregular periods, and fertility issues