Ulcer disease or peptic ulcer is a common gastrointestinal disease that can occur in the esophagus, stomach or duodenum, or near the gastric-jejunal anastomosis or within the Meckel diverticulum containing the gastric mucosa, because gastric and duodenal ulcers are the most common, so generally the so-called peptic ulcers refer to gastric and duodenal ulcers. What are the main symptoms of gastric ulcer? 1, abdominal pain: stomach ulcer and duodenal ulcer patients have a lot of similarities in their symptoms, and they often have abdominal pain. The abdominal pain site of gastric ulcer mainly appears on the left side of the upper abdominal midline or left upper abdomen, however, ulcers located high in the gastric lesser curvature, ulcer pain at the bottom of the stomach is likely to appear in the lower left part of the anterior chest, gastric ulcers will appear in the back pain if they are located in the back wall or appear to penetrate the pancreas backwards. In short, gastric ulcers and duodenal ulcers have many similarities, but are not as limited as duodenal ulcers. 2. Bleeding: Patients with gastric ulcers often have gastric bleeding, which is greater than that of patients with duodenal ulcers, and is prone to recurrence. 3, weight loss: gastric ulcer patients often have abdominal pain after eating, so many patients often do not eat or eat less food in order to reduce pain, so many patients do not consume enough calories for a long time, it will lead to weight loss, and even malnutrition. Stomach ulcers are relatively serious stomach diseases, and if they are not treated reasonably for a long time, they can cause a series of hazards. Gastric ulcers can easily lead to gastric perforation, which can lead to minor bleeding or hemorrhage, and if hemorrhage occurs, it can lead to shock or even death of the patient with gastric ulcer, and the condition can become critical. In addition to this, there may be pyloric obstruction. This condition is caused on the one hand by inflammation, congestion, edema and reflex spasm of the pylorus due to ulcers near the pylorus (including gastric and duodenal ulcers), resulting in temporary, functional narrowing of the pylorus; on the other hand, it is caused by local scar formation and contraction due to recurrent ulcers, resulting in organic narrowing of the pylorus.