A large cohort study documents first endometriosis diagnoses after menopause

What happened

A study available online in Maturitas on 10 October identified 883 surgically confirmed first endometriosis diagnoses after menopause among 80,148 women without a previous reported diagnosis. The finding amounts to about 1.1% of this cohort. It describes diagnoses observed during follow-up, not the prevalence of endometriosis in all postmenopausal women.

First recognized does not mean newly developed

The analysis used the long-running Nurses’ Health Study II. Many of the diagnoses followed surgical menopause. The authors say they cannot determine which lesions were present before menopause and which developed afterward. A first diagnosis may therefore reflect previously unrecognized or persistent disease as well as new lesions.

A disease history can extend beyond periods

WHO describes endometriosis as a chronic condition that can involve pelvic pain, bowel or urinary symptoms, painful sex and wider effects on quality of life. It also notes long delays in diagnosis, variable symptoms and the possibility that symptoms persist or recur after treatment.

Those realities make timing difficult to interpret. The date a condition is recorded is not necessarily the date it began. A study of surgically confirmed diagnoses also reflects who reached investigation and surgery; people with unrecognized disease will not appear in the same way. The cohort’s size does not remove those limitations.

Why it matters

The study gives researchers a stronger basis for examining endometriosis later in life. It also reinforces the importance of taking a person’s complete symptom and treatment history seriously. It does not establish that menopause or surgery caused the diagnoses, and it should not be turned into a claim that hormone therapy caused endometriosis.

What to watch

Research that follows disease and symptoms before and after menopause, includes more diverse populations and separates natural from surgical menopause carefully. New or persistent pelvic symptoms still require clinical assessment for their possible causes; this study does not supply an individual diagnosis or a new screening recommendation.