The vast majority of women’s menstruation is 3-7 days before it clears. If it used to be clean in 3 days, but not clean in 7 days this month, it is likely to be due to the following reasons: 1, endocrine disorders, estrogen deficiency, the endometrium has no way to repair, so there will be such a drenching of menstruation; 2, the endometrium itself, such as endometrial polyps, submucosal uterine fibroids may lead to prolonged menstruation time. Through ultrasound, we can clearly understand whether there are endometrial polyps and submucosal fibroids, and then give appropriate treatment according to the specific situation. Inflammation of the endometrium can also be seen. When the endometrium is inflamed, the tissue is relatively brittle, so the repair of the endometrium will be difficult, which can also lead to dribbling of the menstrual period. It is recommended to have an ultrasound if necessary, and if the endometrium is still relatively thick at this time, diagnostic scraping can be done if necessary.