Inflammatory bowel disease, intestinal tuberculosis, colon cancer and other causes of bleeding in the stool without pain may be the cause of the problem, which needs to be treated with medication or surgery for the cause of the problem. 1. Inflammatory bowel disease: autoimmune system dysfunction, resulting in chronic non-specific inflammatory exudation of the intestinal mucosa, ulcers and other lesions, resulting in the above symptoms. It is necessary to apply mesalazine, prednisone, infliximab and other drugs under the guidance of doctors. 2. Intestinal tuberculosis: Mycobacterium tuberculosis infects the intestines and causes intestinal hyperplasia, exudation and other lesions, so the above symptoms. Rifampicin, isoniazid, pyrazinamide, ethambutol and other anti-drugs can be taken for treatment. 3. Colon cancer: malignant hyperplasia of colon mucosa, resulting in localized occupation of colon and changes such as bleeding, erosion, exudation, etc. In the early stage, it may not have obvious abdominal pain. It can be treated by surgery with radiotherapy and chemotherapy. It is recommended to consult a doctor for timely treatment and use medication under the doctor’s guidance when there are cases of diarrhea and bleeding.