Fresh blood after 15 days of nightmare is often associated with uterine dysplasia, uterine wound dehiscence and uterine tumor. The cause should be clarified through internal gynecological examination and ultrasound, and targeted treatment should be carried out.1. Poor contraction of the uterus: If the vaginal bleeding is continuous or intermittent, it may be caused by poor contraction of the uterus. In this case, you need to take oral hemostatic drugs and uterine contraction drugs for treatment under the guidance of a professional doctor, such as misoprostol, uterine blood, motherwort granules, etc. In serious cases, you need to scrape the uterus. 2. At this time, you should immediately go to the hospital and have the wound stitched up; 3. Uterine tumors: such as uterine fibroids, submucosal fibroids, etc. The surface of the tumor becomes necrotic and ulcerated due to infection and causes bleeding, which is usually treated by surgical removal. Pay attention to avoid eating cold and spicy food, such as ice cream, fried chicken, etc. You can eat more fresh vegetables and fruits, such as radish, kiwi, orange, etc. After delivery, women should pay attention to rest and avoid doing heavy physical work, which may lead to hemorrhage, while ensuring sleep, insisting on breastfeeding and avoiding staying up late.