What accounts for 90% of cases of dysfunctional uterine bleeding (DUB)resulting from unopposed estrogen stimulation in the endometrium?

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Quizplus · Accepted Answer

Anovulation (lack of ovulation) leads to unopposed estrogen stimulation in the endometrium, which can result in dysfunctional uterine bleeding. This accounts for about 90% of cases. The other choices (pregnancy-related conditions, trauma, infection, endocrinologic disorders) may also cause dysfunctional uterine bleeding, but are less common than anovulation.

What Accounts for 90% of Cases of Dysfunctional Uterine Bleeding