There are many causes of gastric prolapse, mainly in the following areas: 1, thin body type, height of the normal population, mainly due to the thin body type, the abdominal organs of less fat, due to the thinning of the visceral fat layer, resulting in the phenomenon of prolapse of the abdominal organs, low pressure in the abdominal cavity, resulting in gastric prolapse. 2, malnutrition, due to malnutrition, thinning of the abdominal fat layer. Malnutrition can lead to weakening of the ligaments of the organs in the abdominal cavity, such as the gastric-diaphragmatic ligament, the gastric-liver ligament, the gastric-splenic ligament, and the gastric-colonic ligament, etc. Malnutrition can lead to ligamentous relaxation, resulting in gastric prolapse. 3, the diaphragm descends, such as diaphragmatic tumors, diaphragmatic injury, and diaphragmatic hernia, due to the natural downward movement of the diaphragm pulling the stomach down through the gastric-diaphragmatic ligament, resulting in gastric prolapse.