Excessive menstrual flow can lead to anemia, physical weakness and other abnormal symptoms, mainly due to the following reasons: 1. Excessive menstrual flow may have ovarian problems, such as poor ovarian luteal function, which can lead to excessive menstrual bleeding; 2. Excessive menstrual flow is related to organic lesions, such as uterine fibroids, endometrial polyps, endometrial cancer, adenomyosis, endometrial thickening, etc.; 3. Excessive menstrual flow does not exclude the existence of Coagulation dysfunction, such as aplastic anemia, blood diseases, etc., can cause excessive menstrual flow; 4. Excessive menstrual flow is related to endocrine disorders, which can cause estrogen and progesterone deficiency, leading to abnormal menstruation; 5. Excessive menstrual flow is related to cold, overexertion, and mental stress. Patients can have ultrasound examination, hormone six examination, gynecological internal examination after menstruation, and eat more food to replenish qi and blood to avoid anemia.