After rectal cancer surgery, patients can choose medication, anal lifting exercise and changing dietary habits. If it is caused by gastrointestinal dysfunction, patients can have symptomatic treatment, give drugs to inhibit gastrointestinal peristalsis, such as atropine, etc., or give montelukast to reduce the frequency of bowel movement. If the diarrhea caused by postoperative anastomosis inflammation, bowel movements can not be held, you can use oral or drip antibiotic treatment under the guidance of the doctor, such as levofloxacin, ceftazidime and so on. In addition, patients can also improve their dietary habits, eat small meals, light diet, do not eat spicy and stimulating food, avoid stimulating the digestive tract, reduce beans and other easy to produce gas food and so on. In daily life, you can also carry out more anal lifting exercise, exercise anal control ability, so as to reduce the number of bowel movements. If the symptoms have not been improved, it is recommended to seek medical treatment in time.