The patient has blood in stool for more than a week, in this case, first of all, the amount of bleeding, the speed of bleeding, the color of bleeding and whether it is accompanied by other symptoms should be clarified. If the bleeding is heavy and fast, it is likely to cause anemia, unstable blood pressure and other symptoms of shock, and it is necessary to find out the patient’s blood type as soon as possible, and promptly transfuse blood to maintain the patient’s vital signs. If the patient’s vital signs are stable and the bleeding is not heavy, the cause of bleeding can be further clarified. The most common causes of blood in the stool are hemorrhoids, anal fissure, ulcerative colitis, colon cancer, colon polyps, the first two need to do a finger-anal examination to make it clear that after the diagnosis can be treated with Ma Yinglong hemorrhoid cream. If it is ulcerative colitis, it needs to be treated with drugs such as Liuzasulfapyridine and Osteoporosis. If the bleeding is caused by colon cancer, it needs to be treated by surgery as soon as possible. If the bleeding is caused by colon polyps, it can be improved by performing electrocoagulation and electrocision of polyps under electronic colonoscopy. It is best not to eat during the bleeding period, and the patient’s vital signs can be maintained through intravenous nutrition.