Hemorrhoidal blood in stool is mostly fresh blood after stool, while bowel cancer blood in stool is mainly old blood. The symptoms and accompanying symptoms of hemorrhoids and bowel cancer are different. 1. Symptoms are different: Hemorrhoidal blood in stool usually drips bright red blood after straining to pass stool, usually the blood and feces will be separated and only exist on the surface of stool, and there may be hemorrhoidal nucleus prolapse. In bowel cancer, blood in the stool is usually mixed with feces, mainly old blood, and will be mixed inside the stool. If the amount of bleeding is relatively large, it can be manifested as black stool. 2. Different accompanying symptoms: hemorrhoids may be accompanied by anal pain during defecation, while bowel cancer is usually accompanied by abdominal pain, constipation, diarrhea, urgency and heaviness, falling sensation in the anus, distortion of stools, and indentation on the surface of stools, and even systemic symptoms such as fatigue and emaciation. Although there are some differences between hemorrhoidal blood in stool and intestinal cancer blood in stool, but only based on the above points can not completely identify whether it is hemorrhoidal blood in stool or intestinal cancer blood in stool, but also need to do further related systematic examination, such as colonoscopy, stool routine and occult blood, tumor-related indexes and so on to give a differential diagnosis. Once patients have blood in stool, they must be very cautious and need to consult a doctor in time, and improve the relevant auxiliary examinations under the guidance of a professional doctor in order to make a more accurate judgment and avoid misdiagnosis.