Peptic ulcers, mainly chronic ulcers in the stomach and duodenum, are a common and frequent disease. There are various factors in the formation of ulcers, among which the digestion of mucous membrane by acidic gastric juice is the basic factor in the formation of ulcers, hence the name. The majority of ulcers occur in the duodenum and stomach, and are also called gastric and duodenal ulcers, because they occur in any part of the body exposed to acidic gastric juice, such as the lower esophagus, the anastomosis after gastrointestinal anastomosis, the jejunum, and diverticula with ectopic gastric mucosa. Clinical manifestations are chronic, periodic, and rhythmic abdominal pain with increased salivation, heartburn, regurgitation, belching, belching, nausea, vomiting, and other gastrointestinal symptoms. Patients with peptic ulcer should avoid mental stimulation, overexertion, irregular life, dietary disorders, smoking and alcohol abuse.