Menstrual clots are very large, mainly caused by excessive bleeding, excessive menstruation is a clinical manifestation of certain diseases, common diseases include uterine submucous fibroids, endometrial hyperplasia, endometrial polyps, adenomyosis, intrauterine placement of the birth control device can also cause excessive bleeding, pelvic inflammatory disease, hematologic disorders, such as thrombocytopenic purpura, leukemia, hemophilia, aplastic anemia, and taking contraceptives and so on. Situation. Excessive menstruation can be complicated by anemia, secondary infection, mental burden, endometrial hyperplasia and the possibility of adenocarcinoma. It is best to go to the hospital for a comprehensive examination to find out the cause and then treat the symptoms. In the diet, we should pay attention to avoid overeating, or eating too much fat, cold, cold, spicy, spicy and dry food to avoid causing menstrual irregularities.