The main cause of fecal incontinence after surgery for rectal cancer is decreased anal control. Improvement can be seen in about 1~2 months after surgery for high anastomosis position, and it may take 6 months for low anastomosis position. 1. Patients with high anastomosis position: the recovery time of defecation after rectal cancer surgery is related to the anastomosis position to a certain extent. Since the position of rectal cancer surgery is high, the position of anastomosis is also high, and at this time, the patients’ defecation function recovers faster, and the patients’ defecation function can usually be improved in 1~2 months. 2. Patients with low position of anastomosis: for some rectal malignant tumors with low position, due to the low position of anastomosis, the patients need to train the defecation function, and it may take about 6 months to recover. For postoperative rectal cancer patients, it is recommended to carry out the bowel function training in time, and you can consult the anorectal doctors of regular hospitals if you have any questions.