Fistula retrieval is a major surgical procedure that requires the patient to actively cooperate with the surgeon in order to complete the surgery and recover from the surgery. The fistula procedure involves anastomosing both sides of the fistula to restore as much of the anatomy of the digestive system as possible. At the same time, the fistula opening in the abdominal wall is closed, eliminating the fistula opening in the abdominal wall. This procedure is mainly used for staged surgical treatment of patients with acute intestinal obstruction, staged surgery for abdominal trauma or staged surgery for gastrointestinal tumors. This surgical procedure is performed carefully to ensure that the anastomosed bowel is functioning well, especially the anastomotic site is in good condition, to prevent postoperative anastomotic obstruction stenosis, hemorrhage, and fistula. At the same time, the abdominal cavity should be carefully cleaned to reduce the occurrence of postoperative abdominal adhesions. Care should also be taken to protect other organs and tissues in the abdominal cavity to minimize surgical trauma. The complexity of the operation is also related to the specific situation of the patient, or a relatively large surgical operation. Therefore, the patient needs to actively cooperate with the doctor to complete the operation. After the operation, the patient should follow the doctor’s instructions to carry out the appropriate treatment and dietary management, to promote the recovery of the body.