If blood in the stool is found, you usually need to go to the hospital to check the stool routine plus occult blood, colonoscopy, blood routine and other items, the details are as follows: 1. Stool routine plus occult blood: you can find out whether there is bacterial infection in the stool, and at the same time, you can find out whether there are blood cells in the stool or not; 2. Colonoscopy: you can clarify the specific cause of bleeding in the intestine, and if it is gastroscopy, you can find some upper gastrointestinal bleeding; 3, Routine blood count: to check whether there are changes of anemia due to repeated blood in stool. After the specific cause of blood in the stool is found, we should actively take relative treatment measures according to the specific cause. If it is caused by inflammatory bowel disease, it is recommended to actively carry out anti-inflammatory symptomatic treatment, and if it is caused by tumor, it is recommended to take a comprehensive treatment mainly by surgery, including chemotherapy, radiation therapy, targeted therapy, etc.