Anal fistula surgery 20 days can eat beef and mutton, but in moderation; patients should be scientific diet, conducive to recovery. Anal fistula mainly take surgical treatment, surgery will be cut or excision of the fistula, can promote healing; anal fistula surgery 20 days or so when the body has basically recovered, at this time you can eat some beef and mutton, can be supplemented for the body rich in protein; but should not be eaten in large quantities, so as not to increase the burden on the gastrointestinal tract, affecting the normal digestive and excretory functions. After anal fistula surgery should eat more food rich in dietary fiber, such as fresh fruits and vegetables, is conducive to maintaining the smooth flow of stool; to reduce greasy, stimulating, difficult to digest food, so as not to affect the recovery of the condition. After anal fistula surgery, we should pay attention to review, if the body appears uncomfortable symptoms, should be timely medical treatment.