Men with blood in the stool, do not be nervous, you should observe the color of blood in the stool: a. If the color of blood in the stool is dark red, consider that the bleeding site is far from the anus, it may be upper gastrointestinal bleeding, you should follow up the medical history, whether there is a gastroduodenal ulcer, whether there is a small intestine diverticulum, small intestine polyps and other lesions. Second, if the patient stool blood is bright red, consider the bleeding site is closer to the anus, the common cause may be hemorrhoids, especially internal hemorrhoids caused by bleeding, blood in the stool is bright red, sometimes dripping or jet bleeding. Sometimes if a man’s stool is dry, it can damage the skin of the anal canal leading to fissures, and there will also be bright red blood when wiping the stool, which will also be accompanied by painful symptoms. Therefore, there are many reasons for men to have blood in the stool, and it should be combined with medical history, physical examination and, if necessary, colonoscopy or gastroscopy to clarify the site and cause of bleeding.