Hidden pain in the abdomen after eating is related to indigestion, acute enteritis and gastrointestinal dysfunction. Some people will have indigestion, after eating food, the stomach’s digestion of food is affected, part of the food will be discharged into the intestinal tract in a half-digested state, half-digested food will cause irritation to the intestinal mucosa, which will induce a vague pain in the abdomen. Eating a diet that is too spicy, irritating or with bacteria or viruses in the food will affect the function of the intestinal mucosa and even induce an attack of acute enteritis. Inflammation of the intestinal mucosa during an attack of acute enteritis will not only result in hyperperistalsis, but also in abdominal pain due to the release of inflammatory factors. Some people may suffer from gastrointestinal dysfunction, which can be triggered by allergy-inducing foods. During an attack of gastrointestinal dysfunction, the intestinal wall will contract spasmodically, thus inducing abdominal pain.