The specific reasons for farting a lot after rectal cancer surgery should be analyzed with the length of postoperative period, which may be related to the recovery of gastrointestinal peristalsis, improper diet, intestinal adhesion and so on. 1. Early postoperative period: 2-3 days after surgery, due to the end of surgery, anesthesia gradually subsides, gastrointestinal function slowly recovers, gastrointestinal peristalsis gradually accelerates, and farting may occur. This is a normal situation after surgery, basically do not need special treatment, patients should not be too nervous. 2. Improper diet: With the gradual recovery of the patient’s body, gastrointestinal function gradually recovered, in the process of eating, you should choose some easy to digest, easy to absorb food. If patients eat cold and irritating food, eat some food that is not easy to digest, after stimulating the gastrointestinal tract, it may lead to gastrointestinal peristalsis growth rate, farting, and there may also be an increase in the number of stools, loose stools and other manifestations. 3. Intestinal adhesion: Due to the relatively large operation of rectal cancer, patients are prone to abdominal intestinal adhesion after operation, which may also lead to farting and abdominal distension. It is necessary for patients to have reasonable diet and appropriate activities to improve clinical symptoms. Postoperative farting after rectal cancer surgery can be caused by many reasons, so it is recommended to clarify the cause of the disease under the guidance of doctors and carry out targeted treatment.