It is not normal for a woman to have a prolonged menstrual period when her period is not clean for 8 days. It is normal for a woman to have her period within 3-7 days. If it is not cleared for more than 8 days, the woman should pay attention to proper rest and not to get cold. If the vaginal bleeding is not heavy, you can also give medication to stop the bleeding and anti-infection for 2-3 days. If the vaginal bleeding is still heavy, women should go to the hospital for gynecological ultrasound and sex hormone examination. If the prolonged menstrual period is caused by fibroids, adenomyosis, endometrial polyps, etc., women should be treated with medication or surgery. In case of menstrual disorders due to luteal atrophy, progesterone medication should be given to regulate the endometrium so that the endometrium can be completely exfoliated to prevent menstrual disorders due to prolonged periods.