Postoperative prognosis of rectal intramucosal cancer is relatively good, and most patients can get clinical cure, so the survival time of patients is relatively long. Rectal intramucosal cancer belongs to early rectal cancer, and if there is no contraindication to surgery, most of the patients are given radical rectal cancer surgical resection, and the five-year survival rate of the patients after surgery is about 90%, and most of the patients can survive for a long period of time, so the prognosis is good. Moreover, the tumors of patients with intramucosal rectal cancer are relatively limited, and the cancerous tissues do not spread to the surrounding tissues and distant organs, therefore, generally there is no need to give auxiliary radiotherapy or chemotherapy after surgery, and it is only necessary to have regular review to monitor the condition and detect the recurrence and metastasis in a timely manner.