The reason for this is that it is common to have a bloated stomach when you eat something, as well as chronic gastritis, peptic ulcer, gastroparesis and gastric cancer. The treatment should pay attention to the hospital to improve the gastroscopy, colonoscopy or barium meal examination of the digestive tract, to further clarify whether there are submucosal pathological changes and kinetic abnormalities, and then the cause and symptomatic treatment. 1, improper diet: eating cold, spicy and irritating food, or unclean diet can lead to flatulence, gastrointestinal dysfunction, poor gastrointestinal power, indigestion, which can be manifested as eating something It can be manifested as eating something, i.e., abdominal distension. The patient should pay attention to the diet, to light, easy to digest diet, can drink a moderate amount of millet porridge, eat less gas-producing food, such as soy products; 2, chronic gastritis: inflammatory lesions of the gastric mucosa can lead to indigestion symptoms, such as epigastric pain, loss of appetite, less food bloating, acid reflux, etc.. Chronic gastritis patients should get rid of various factors that may cause the disease, such as avoiding diets and drugs that have a strong stimulus to the gastric mucosa, quit smoking and avoid alcohol. At the same time, pay attention to dietary hygiene and prevent overeating. According to the patient’s condition, symptomatic drugs should be applied for treatment, such as atropine and belladonna combination for painful episodes, and rabeprazole, lansoprazole and omeprazole for stomach acid; 3. Peptic ulcer: Patients may show gastrointestinal symptoms such as pain in the upper and middle abdomen, heartburn, regurgitation, belching acid, nausea and vomiting, and also bloating after eating less. Patients should pay attention to their diet, chew slowly, eat regularly, eat less and more often, pay attention to nutrition, should quit smoking and alcohol, and avoid coffee, strong tea, strong broth and chili, vinegar and other irritating food intake. The patient can apply anti-H. pylori, anti-acid secretion, gastric mucosa protection drugs such as bismuth, proton pump inhibitors, antibiotics, histamine receptor antagonists, aluminum and magnesium combination, etc.; 4. Gastroparesis: delayed gastric emptying is the main feature, manifested as early satiety, epigastric distension after eating a small amount of food, nausea and vomiting, episodes of dry vomiting, weight loss, malnutrition and other symptoms. Patients are advised to eat a low-fiber, low-fat liquid diet to facilitate gastric emptying, and to reduce the intake of foods or medications related to delayed gastric emptying. Gastric power drugs such as domperidone, metoclopramide, etc. can be used under the guidance of doctors; 5. Gastric cancer: tumor stimulates intestinal mucosa, leading to gastrointestinal dysfunction, and patients may experience less food and bloating. Gastric cancer is usually treated by surgical resection of tumor, and for advanced malignant tumor, auxiliary application of radiotherapy and chemotherapy is required; 6, intestinal inflammation or tumor: inflammation and tumor stimulate and damage intestinal mucosa, leading to abnormal intestinal digestion and absorption function, which in turn leads to slow food emptying, and patients can show symptoms of eating and bloating. Enteritis can be treated by applying sensitive antibiotics according to the results of drug sensitivity tests, and if severe complications of enteritis occur, treatment by surgical removal of the diseased intestinal segment is required. Intestinal tumors are treated by surgical removal of tumors, supplemented by radiation and chemotherapy; 7. Other: hypothyroidism, hepatitis, cholecystitis, pancreatitis and other diseases can lead to symptoms of less food and abdominal distension. Patients should go to the hospital in time for relevant examinations to clarify the cause and then treat the symptoms.