Nowadays, due to the popularity of medical knowledge, more and more people understand that polyps are lesions that may grow into malignant tumors, so many people can take the initiative to go to the hospital and have them removed. Whether the rectal polyp removal needs to be hospitalized from three aspects: 1, if the polyp is very small, in 0.5cm or 1cm or less, through the minimally invasive method, that is, under the endoscope can be removed; in this case, to be observed after the polyp removal 24 hours, so there are observation conditions of the hospital can not be hospitalized; 2, if it is a relatively large benign polyps, such as more than 1.5cm or 2cm If the tumor is larger than 1.5 cm or 2 cm, there is a possibility of secondary bleeding and perforation after removal, such patients are recommended to be hospitalized; it is safer to be discharged after 2-4 days of observation in the hospital for normal exhaustion, defecation and normal diet after removal; 3. Some polyps are too large or have infection, bleeding, edema, or even malignant epiphenomena, such patients must be hospitalization, the possibility of complications in the next step in the treatment process is high, so hospitalization is recommended.