Bleeding in the uterus not caused by a menstrual period.
Bleeding from the womb at times other than menstruation that may be caused by a hormonal or other abnormality or illness.
A diagnosis of exclusion in which there is abnormal bleeding from the uterus not caused by tumor, inflammation, or pregnancy. These causes of bleeding must be ruled out before DUB may be diagnosed. The condition may occur with ovulatory cycles, but most often occurs with anovulation. It is common in women with polycystic ovary syndrome. Endometrial hyperplasia followed by sloughing of the endometrium may occur in women with repeated anovulatory cycles.