It usually takes about a month for an enterocutaneous fistula to get better after rectal surgery. Intestinal fistula is a common complication of rectal surgery and other abdominal surgeries, and may be caused by postoperative abdominal infections, rupture of the intestinal tube or anastomosis after surgery, and other factors. Patients will have the manifestation of intestinal contents flowing out of the fistula, such as intestinal fluid, bile, feces, etc. They may also have peritonitis symptoms such as fever, abdominal distension, abdominal pain, and localized abdominal wall pressure and rebound pain. Its treatment is mainly anti-infective as well as rehydration, to maintain the electrolyte balance in the body, if the symptoms of peritonitis, usually also have to carry out abdominal drainage, for the fistula is large, abdominal contamination is serious patients, can be carried out fistula stoma. The patient’s specific situation is different, its treatment is also different, the recovery time will naturally be different, generally need about a month, but the specific time also need to be decided according to the actual situation of the patient. It is recommended that patients actively cooperate with the doctor’s treatment, usually pay attention to observe the healing process, maintain a regular routine and a good state of mind, and follow the doctor’s instructions for regular review, which is conducive to the recovery of the body.