Normal menstrual bleeding usually lasts from 3 to 7 days, more than 10 days can be considered as prolonged bleeding time. Excessive menstrual bleeding can be caused by many factors, including: menstrual strain, cold, endocrine disorders, IUD, gynecological inflammation, fibroids, blood disorders, liver or kidney disease, endometrial abnormalities, etc. After the bleeding stops, we need to check the sex hormone test and ultrasound to identify the cause and then treat the symptoms. If necessary, apply hemostatic drugs. Pay attention to the warmth and rest during menstruation. Chinese medicine can be divided into: Qi deficiency, deficiency heat, blood stasis, etc. If necessary, consult a local TCM specialist for treatment.