Rectal polyps 0.2-0.4cm have no danger of being combined with the nature of the polyp to determine. 1. benign polyps: rectal polyps are a relatively common rectal lesion, generally speaking, benign rectal polyps are not dangerous, will not have a serious impact on the patient’s health, some patients will be due to polyp rupture of blood in the stool, can be anesthetized under the colonoscopy for resection. 2. Malignant polyps: the larger the rectal polyp, the higher the probability of malignant polyps, patients with rectal polyps up to 0.2-0.4cm, is not a very large rectal polyps, but there is still the possibility of malignant polyps, if the development of malignant polyps very quickly, and easy to spread to other tissues and organs, the patient’s health has a serious impact, it is recommended that patients as soon as possible surgical resection. It is recommended that patients do physical examination routine colonoscopy or anoscopy, once found intestinal polyps, according to the doctor’s advice to take part of the biopsy pathology, can determine the nature of the polyps of benign and evil, and in the microscope to do polypectomy. Follow-up observation and related treatment as prescribed by the doctor.