There is a difference between blood in stool of bowel cancer and blood in stool of hemorrhoids, as follows: 1. Blood in stool of bowel cancer: blood in stool caused by bowel cancer is usually mixed with blood and stool, in addition, there may be dark red blood stool, black stool and so on, there are some bowel cancers that are closer to anus, and they also show that there is blood on the surface of stool, or there is blood in anus after defecation, in which case, it is possible to confuse it with hemorrhoids; 2. Blood in stool of hemorrhoids: blood in hemorrhoids caused by Bleeding is usually on the surface of the stool, there is blood dripping from the anus after defecation, and it is bright red blood, rarely dark red blood, black stool and so on. Patients further improve the anal diagnosis, enteroscopy, abdominal CT, pelvic CT and other related examinations, will be able to further distinguish, sometimes simply through the blood in the stool, and not be able to completely distinguish between bowel cancer, hemorrhoids.