Rectal polyps are a very common anorectal disease, but they can be benign or malignant. Therefore, when examining the lesions, it is necessary to eradicate the more brittle rectal polyps in a timely manner. The clinical manifestations of rectal polyps are mostly asymptomatic, and most of them are found during physical examination. If the polyps are large and often subjected to fecal friction, the mucosa can be eroded, and there is blood and mucus in the feces. The common symptoms are bright red blood, not much blood, mixed with mucus, blood is mostly on the surface of the stool, if the bleeding is large, or bleeding for a long time, can cause wasting, anemia, polyps can also appear when the polyp is large, the symptoms of urgency, constipation, more discharge from the anus. The disease can be carcinogenic, therefore, when the disease is found, a pathological tissue biopsy must be performed to clarify its nature. How to distinguish rectal polyp is benign or malignant? 1, appearance: polyps with lobes are prone to malignancy, smooth and rounded are less. 2.Base: polyps with large base and small head are highly susceptible to malignancy. 3, brittleness: during the examination, when touched with a speculum or instrument is very easy to bleed, most of them are malignant polyps. On the contrary, they are benign. 4, size: polyp enlargement or polyps larger easily malignant, polyps without significant increase, less malignant. 5, ulcers: polyps in general no ulcers, when malignant, you can form ulcers, especially polyps with tips usually do not cause ulcers, once the ulcers, it shows that it has malignant changes. 6.Activity: firm, solid, non-tipped polyps are prone to malignant change; while those with active tips are relatively less malignant. 7.Type: those with a tip are mostly tubular adenomas, which have a relatively low cancer rate. Therefore, once abnormalities are found in the anal area, accompanied by bleeding and other symptoms, you need to promptly consult a doctor to investigate and do preventive work. If diagnosed as rectal polyps, early confirmation of benign or malignant and surgical treatment are required.