Duodenal ulcers are prone to perforation or hemorrhage caused by ulcers, and if necessary, surgical treatment is required, including simple repair and local excision of the ulcerated surface, postoperative complications are likely to occur, the most common is abdominal infection after surgery, and in severe cases, abdominal or pelvic abscesses may be formed. The incision infection can lead to fat liquefaction and delayed healing, requiring multiple dressing changes. In addition, if it involves reconstruction of the digestive tract and anastomosis of the gastrointestinal tract, the anastomosis is prone to stenosis, localized scar formation, and the formation of postoperative complication of intestinal obstruction after surgery, and ulcers are prone to recurrence, so it is necessary to continue the symptomatic treatment after surgery, and it is also necessary to pay attention to eating less and more frequent meals and reasonable diets in normal times, and a small number of ulcer patients are prone to malignant changes, and the incidence rate is very low. Alkaline reflux gastritis or gastric paralysis and other related complications.