There are various reasons for patients to have bloating symptoms after meals, and the first thing to consider may be caused by poor dietary habits. Usually the intake of spoiled, moldy, greasy and flatulent food, such as overnight vegetables, fried chicken and soybeans, as well as eating too fast and overeating can cause patients to suffer from post-meal gastric distention, which is physiological gastric distention and generally improves the symptoms of patients after regular diet. In addition, do not rule out the possibility of pathological postprandial bloating caused by diseases: 1, gastric diseases: chronic gastritis, gastric ulcer, gastric prolapse and other gastric diseases, patients with reduced gastrointestinal dynamics, decreased gastric tolerance and indigestion, resulting in the difficulty of gas discharge in the stomach after eating, inducing postprandial bloating; 2, intestinal diseases: clinically common irritable bowel syndrome, enteritis, malabsorption The patient will not only have the discomfort of stomach distension after meals, but also have diarrhea, weakness, abdominal tinnitus, nausea, etc.; 3, gallbladder diseases: including gallstones, cholecystoma, etc., the patient’s bile secretion disorder, composition changes, etc., thus the digestion of fatty substances in the ingested food is abnormal, triggering poor digestion after meals, nausea, stomach distension and other symptoms; 4, pancreatic Disease: common chronic pancreatitis, patients have abdominal pain, stomach distension, nausea, vomiting and other symptoms, will be significantly increased after eating a high-fat diet; 5, liver disease: if the patient himself suffers from chronic hepatitis, cirrhosis and other liver diseases, due to impaired liver function, triggering pathological reactions such as loss of appetite, stomach distension, aversion to greasy food.