Peptic ulcer

Peptic ulcer mainly refers to chronic ulcers that occur in the stomach and duodenum. It is a common disease. There are various factors for the formation of ulcers, among which the digestive effect of acidic gastric juice on the mucosa is the basic factor for ulcer formation, hence the name. Any area where acidic gastric fluids come into contact, such as the lower esophagus, anastomosis after gastrointestinal anastomosis, the jejunum, and Meckel's diverticulum with ectopic gastric mucosa. Most ulcers occur in the duodenum and stomach, so they are also called stomach and duodenal ulcers.