Gastric distension once eating is a relatively common clinical phenomenon, which is not necessarily cancer, but mostly caused by digestive insufficiency and slow food peristalsis. When stomach distension occurs after eating, firstly consider the functional change of gastrointestinal tract, such as irrational dietary habits, overwork, etc., which can cause gastrointestinal dysfunction and slow gastrointestinal peristalsis, leading to dyspepsia. At this time can improve the symptoms through abdominal massage to promote exhaust, usually to the navel as the center of the clockwise kneading abdomen. In addition, digestive system diseases, such as gastritis, gastric ulcer, reflux esophageal disease, etc., are also prone to symptoms of bloating after eating. Of course, cancer may also cause the phenomenon. For middle-aged and old people, especially those with family history of gastric cancer or poor dietary habits, gastroscopy is needed to rule out gastric cancer, esophageal cancer, etc., and if necessary, pathological examination can be performed to identify the lesions. All in all, there is no need to worry too much about the phenomenon of bloating after eating, patients can go to the gastroenterology department of the hospital for examination in time, and reasonable treatment can be given according to the cause of the disease. Patients should avoid taking unauthorized prescriptions or medications when the cause of the disease is unclear, so as not to cause delays in the condition.