Frequent blood in stool is mainly considered to be hemorrhoids, or anal fissure, anal fistula and so on. Usually, it is fresh blood stool, and the blood will remain on the tissue after the stool, which is more related to dietary habits, exertion, sedentary, constipation and so on. After the correction of dietary habits, constipation relief, medication and so on can get better. In addition, we also need to pay attention to the following diseases: 1, ulcerative colitis, Crohn’s disease, intestinal tuberculosis, bacillary dysentery, etc., mainly mucus, pus and blood in the stool, enteroscopy can be a clear diagnosis. 2, intestinal polyps, most often manifested as a small amount of bleeding, with or without abdominal pain. 3, colon cancer, rectal cancer, etc., in addition to common blood in the stool (bleeding is sometimes more and sometimes less), but also changes in the shape of stools abdominal pain, constipation and so on.