[Menstrual status as risk factors of endometriosis: a case-control study].

L Y Pan, Pan Ly
Zhonghua fu chan ke za zhi · 1993 · vol. 28(3) , pp. 147–9, 188 · PMID:8354093 · W2433763014
article OA: closed CC0 ⤵ 3 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-07 ⓘ

This case-control study found that earlier menarche and longer menstrual periods increased endometriosis risk, while longer cycles seemed protective, with dysmenorrhea and strenuous exercise during menstruation also associated with higher risk.

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Abstract

A case-control study, involving 203 cases of pelvic endometriosis and 406 randomly selected and age-matched community controls, was conducted. The results showed that women characterized by earlier menarche ( 7 days) were associated with an elevated risk. Longer cycle (> 35 days) seemed to have a protective effect. There are a tendency to increasing risk for endometriosis associated with primary dysmenorrhea and energetic physical activities during menstruation. The results indicate that intensive treatment of primary dysmenorrhea and avoidance of strenuous exercise during menstruation may prevent pelvic endometriosis.

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Condition tags

dysmenorrheaendometriosis

MeSH descriptors

Dysmenorrhea Endometriosis Menstruation Pelvic Neoplasms Adult Case-Control Studies China China Endometriosis Endometriosis Female Humans Menarche Pelvic Neoplasms Pelvic Neoplasms Risk Factors

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Cited by (3)

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