Menstruation does not go if it lasts longer, easily cause dizziness, fatigue and other uncomfortable symptoms, in general, the duration of menstruation does not exceed 7 days, normal in about 3-5 days, if in the menstrual period because of excessive exertion or improper diet, causing prolonged periods, the general situation does not matter, it is recommended that you can take the uterine blood capsule under the guidance of a doctor. If the hormone level is high and causes persistent thickening of the endometrium, which leads to a long menstrual period, it is recommended that you can take less abdominal stasis pellets and also safflower prolapse pellets, and if necessary, you can also do uterine clearance and scrape out the endometrium for pathological examination or hysteroscopy to determine whether there is endometrial malignancy. The endometrium may be malignant.