A woman with endometriosis experiences increased pain during menstruation. Which mechanism explains why this phenomenon occurs in the reproductive system?

💡 Explanation

Ectopic endometrial tissue outside the uterus responds to hormonal fluctuations of the menstrual cycle, causing inflammation and pain because it proliferates and bleeds. Therefore, the pain increases during menstruation, rather than being due to prostaglandin changes or progesterone deficiencies.

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