The common causes of bloating after eating are chronic enteritis, hepatobiliary and pancreatic diseases, intestinal tumors and so on. 1. Chronic enteritis: due to intestinal inflammatory diseases, causing intestinal digestion and absorption of food function is weakened, can be accompanied by intestinal flora imbalance, may appear after meals bloating and so on. 2. Liver, gallbladder and pancreatic diseases: when there are diseases in liver, gallbladder and pancreas, such as pancreatitis, cholecystitis, cirrhosis of the liver, etc., it will cause weakening of digestion and absorption of food, resulting in bloating. 3. Intestinal tumors: anemia, emaciation, increased frequency of stools, resulting in incomplete narrowing of the intestinal tract, after eating, the gastrointestinal tract contents increase, gastrointestinal peristalsis accelerates, the emptying is not smooth, and distension occurs in the lower abdomen. After eating small abdominal distension and pain recurrence, you should promptly go to the hospital, clear cause, under the guidance of a professional physician, follow the doctor’s instructions for treatment, do not self-medication, so as not to delay the condition.