Bleeding from the anus may be caused by the following conditions: 1. Bleeding internal hemorrhoids, internal hemorrhoids are usually related to the patient’s irregular living habits. Especially the recent intake of too much spicy, irritating food, resulting in hemorrhoid nucleus enlargement, congestion or bleeding and so on. Need timely oral fire gardenia oatmeal tablets, acacia flowers and other drugs for treatment, if the amount of bleeding also need to be surgical resection. 2, anal fissure, mostly due to the stool is too hard and dry, hard to defecate when the anal part of the skin caused by the tear symptoms, will be accompanied by tingling sensation, bleeding and other symptoms. 3, it may be the chronic eczema perianal, if scratching the skin ulceration, oozing blood and other symptoms. In addition, there may be rectal tumors, anal papillae hypertrophy and other conditions, it is best to go to the hospital in time for diagnosis and treatment.