Perforation generally refers to the rupture of cavity organs under the action of inflammation or trauma, and its contents enter the abdominal cavity and cause a series of clinical symptoms. Common perforation is gastroduodenal perforation, that is, the gastroduodenal mucosa is damaged and ulcerated under the action of inflammation or trauma, and its contents enter into the abdominal cavity, which often leads to severe abdominal pain and other signs of peritoneal irritation, and the diagnosis can be confirmed by seeing free gas below the diaphragm under the standing abdominal plain film. If perforation occurs, early treatment is needed. Small perforations can be treated conservatively with gastrointestinal decompression and maintenance of water and electrolyte balance, but if the symptoms are severe, early surgery is necessary, and perforation repair or resection of the lesion is usually used.