Hernias that appear after colon cancer surgery are usually incisional ventral wall hernias, while patients with obesity, intestinal obstruction and inadequate bowel preparation have heavier abdominal contamination and are prone to postoperative infection of the incision. Patients with diabetes mellitus and advanced age also have relatively weak recovery ability and are equally prone to incisional infection, which affects abdominal wall repair and results in poorer postoperative repair. As the patient’s exercise gradually increases, the ability of the abdominal wall to be compressed decreases, and gradually an incisional hernia will form. In some patients with colostomy or small intestine fistula, poor recovery around the fistula or oversized fistula, postoperative hernia may also be formed with the increase of exercise.