Osmosis video - Abnormal uterine bleeding: Clinical

Abnormal uterine bleeding (AUB) refers to uterine bleeding of abnormal quantity, duration, or schedule. There are many possible causes of AUB, and the exact cause can often be difficult to determine. However, some common causes of AUB include hormonal imbalances, uterine fibroids, polyps, endometriosis, and neoplasia.