RT Journal Article SR Electronic T1 The overlooked and undertreated perils of premature ovarian insufficiency JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 475 OP 482 DO 10.3949/ccjm.92gr.25056 VO 92 IS 8 A1 Butts, Samantha F. YR 2025 UL http://www.ccjm.org/content/92/8/475.abstract AB Premature ovarian insufficiency (POI) is loss of ovarian function before age 40. Genetic, autoimmune, and iatrogenic causes are well defined, but 90% of cases are idiopathic. POI prevalence is estimated to be between 3% and 4%, with many cases undiagnosed or untreated. Affected individuals experience prolonged estrogen deficiency unless hormone therapy is instituted to restore physiologic levels. Untreated POI is associated with multiple health risks, including premature death due to cardiovascular disease.