The difference between rectal cancer and hemorrhoidal polyp is mainly that the symptoms are different and the nature is different. 1. Symptoms are different: there are no symptoms in the early stage of rectal cancer, with the development of the disease, there will be frequent bowel movement, change of bowel habit, feeling of incomplete bowel movement, pain in the lower abdomen and bleeding and thinning of stool. Hemorrhoids are congested and enlarged veins in the anal canal and lower rectum, the main symptom is bleeding during defecation, severe internal hemorrhoids will have hemorrhoidal prolapse, external hemorrhoids will have pain and anal itching symptoms, mixed hemorrhoids will also have pain and bleeding during defecation, meatballs and other symptoms. Most of the rectal polyps do not have clinical symptoms, a small portion may have blood in the stool, a sense of urgency, mucus stool and other symptoms. 2. The nature is different: hemorrhoids is a benign disease, generally will not be malignant, rectal polyps have a certain chance of malignancy, but the chances are small, rectal cancer is a malignant lesion. If you suspect that there is a disease, can not simply based on the symptoms to confirm the diagnosis, you should go to the hospital as soon as possible to do the relevant examination, differential diagnosis, such as anal fingerprinting, visual diagnosis, proctoscopy, etc., for the cause of the symptomatic treatment.