Duodenal syndrome is a disease of the digestive system. Consultation should be made to gastroenterology and gastrointestinal surgery. Duodenal compression syndrome, an intestinal obstruction caused by compression of the horizontal portion of the duodenum by the superior mesenteric artery, is clinically characterized by chronic obstruction, with recurrent vomiting after eating, with or without abdominal pain, and vomiting of bile-mixed persistent food. Symptoms can be relieved by adopting the chest-knee position, left lateral position or occasionally prone position. The treatment of this disease is divided into conservative treatment and surgical treatment. The main therapeutic principles of conservative treatment are symptomatic and nutritional supportive therapy, and strengthening abdominal muscle exercise. Surgical treatment includes minimally invasive laparoscopic surgery and duodenojejunostomy. If the diagnosis is clear, you should go to the hospital in time to get medical treatment, clarify the cause of the disease, and carry out the treatment under the guidance of the doctor, so as to avoid delaying the condition.