Possible causes of swollen stomach include functional dyspepsia, acute gastric retention, acute intestinal obstruction, etc. Treatment includes medication, dietary adjustments, and surgery. 1. Functional dyspepsia: Functional dyspepsia is a functional disease with no organic lesions in the digestive tract. Treatment mainly includes dietary adjustment and medication. Dietary adjustments include balanced diet, reducing spicy and stimulating foods, quitting smoking and drinking, and moderate exercise. Drugs are mainly chosen according to the symptoms, patients with abdominal distension as the main symptom can use some gastrointestinal prokinetic drugs such as domperidone and so on. 2. Acute gastric retention: The treatment of acute gastric retention can be divided into gastrointestinal decompression and symptomatic treatment. After gastrointestinal decompression and suctioning out the gastric contents, if the obstruction is caused by pyloric edema, you can use some acid-suppressing drugs such as omeprazole, and at the same time, you should wash the stomach with lukewarm salt water to promote the absorption of edema. If the obstruction is caused by fibrous scarring, surgery is needed. 3. Acute intestinal obstruction: the treatment of acute intestinal obstruction can be divided into conservative treatment and surgical treatment. Conservative treatment includes fasting, gastrointestinal decompression, and the use of some drugs, such as growth inhibitors and acid inhibitors. If the condition is not relieved by conservative treatment or if strangulation has already appeared, surgery should be performed as soon as possible. In addition to the above reasons, huge liver cysts, acute pancreatitis, acute appendicitis, irritable bowel syndrome and other diseases can cause abdominal distension symptoms, it is recommended that patients go to the hospital as soon as possible to find out the cause of the disease and then be targeted treatment.