If the menstrual flow is excessive, it is often due to the following clinical reasons: 1. submucosal fibroids, because of the growth of submucosal fibroids into the uterine cavity, so it affects the contraction of the uterus, when the menstrual period is difficult to close the blood sinus, resulting in increased menstrual flow. 2. caused by coagulation dysfunction or thrombocytopenia, it is recommended to go to the internal medicine department to give the corresponding examination, to understand the causes of platelets and The first of these is a new type of aspiration.