Male blood in the stool to consider the following conditions: a, hemorrhoids: the most common clinical may be internal hemorrhoids, mixed hemorrhoids lead to blood in the stool, this situation is the most common in the clinic, especially internal hemorrhoids hemorrhoids ruptured nucleus when the fresh blood is more obvious, and often the characteristics of the blood stool is fresh blood and the stool does not mix together. Second, rectal polyps: due to constipation or polyp growth faster secondary infection, also easy to cause blood in the stool. Third, malignant tumors: clinically more common colorectal malignant tumors, including rectal cancer, colon cancer caused by blood in the stool, this situation tends to appear pus and blood stools, patients with obstruction and other symptoms. In short, men with symptoms of blood in stool must pay great attention to the symptoms, should actively go to the hospital for consultation, to find the causes of blood in stool.