Uterine bleeding can not stop what is the cause

Uterine bleeding can not stop the common causes are the following: the first kind of most common, mainly because of ovarian hormone secretion function and ovulation function caused by serious obstacles or failure, the most common is adolescence or menopause anovulatory dysfunction uterine bleeding. The second type is more common because of severe bacterial infection of the endometrium caused by repeated uterine bleeding, mainly because the endometrium can not be effectively repaired. The third type may be caused by repeated bleeding caused by cervical polyps or endometrial polyps. The fourth type may be caused by repeated uterine bleeding caused by incomplete abortion. The fifth type may be recurrent uterine bleeding caused by gestational trophoblastic disease that occurs after pregnancy.