The old man who inserts gastric tube always burps, which may be caused by gastric tube stimulating gastric mucosa, feeding too much, food and other physiological reasons, or it may be caused by chronic gastritis, peptic ulcer and other pathological reasons. 1. Physiological causes: food temperature is too low, feeding too much at a time, foreign objects (gastric tube), etc., can stimulate the pharynx, esophagus and gastric mucosa, causing mucosal congestion, edema, nausea, vomiting, hiccups, abdominal distension and other symptoms. 2. Pathologic causes: (1) chronic gastritis: alcohol, aspirin and other non-steroidal anti-inflammatory drugs, chili peppers, bacterial infections and other factors acting on the gastric mucosa for a long time can cause chronic inflammation of the gastric mucosa. Symptoms such as nausea, vomiting, hiccups, loss of appetite, stomach pain, early satiety, etc. appear after gastric tube insertion. (2) Peptic ulcer: excessive gastric acid secretion, Helicobacter pylori infection and other factors lead to ulcerative changes in the gastrointestinal mucosa, abdominal pain, abdominal distension, hiccups, vomiting blood, blood in the stool and other symptoms, which can be accompanied by systemic symptoms such as weight loss. Gastric tube old man always hiccups, it is recommended to consult a doctor in order to clarify the diagnosis, under the guidance of the doctor to carry out targeted treatment.