The appearance of gastric acid reflux and flatulence is often caused by chronic gastritis, peptic ulcer, gastroesophageal reflux disease, Helicobacter pylori infection, gastric cancer and other lesions. Patients are advised to visit the gastroenterology department to clarify the causes and give reasonable treatment. Common causes and treatment methods are as follows: 1. Chronic gastritis: Patients with chronic gastritis, or with gastric mucosal erosion and bile reflux, will have symptoms of acid reflux and flatulence in the stomach. Patients should go to the hospital in time to actively treat the primary disease, and can use domperidone, amoxicillin, metronidazole, clarithromycin and other drugs to relieve symptoms under the guidance of a doctor; 2. Peptic ulcer: Patients with peptic ulcer, such as gastric ulcer and duodenal ulcer, will have symptoms such as acid reflux and flatulence in the stomach. It is recommended to go to the hospital in time and use ranitidine, omeprazole, lansoprazole, aluminum thioglycollate, bismuth potassium citrate and other medications as prescribed by the doctor. 3. GERD: When patients suffer from GERD, it will lead to acid reflux to the throat and patients feel acid reflux, flatulence and nausea in the stomach. It is recommended to follow medical advice to use acid suppressants and gastrointestinal motility drugs and other medications; 4. Helicobacter pylori infection: When patients have H. pylori infection, they will experience acid reflux and flatulence. Patients should go to the hospital for H. pylori testing in time, and can use H. pylori eradication treatment under the guidance of a doctor, such as PPI inhibitor + 2 antibiotics + 1 bismuth agent combined treatment; 5, gastric cancer: when suffering from gastric cancer, symptoms such as acid reflux and flatulence in the stomach can also occur, and some patients may also have diarrhea, abdominal pain, black stool, etc. At this time, patients should go to the hospital in time, under the guidance of doctors, to have surgery to remove the cancer, and actively cooperate with doctors for radiotherapy and chemotherapy after surgery. Patients should pay attention to their daily diet, eat less or no spicy, cold and other stimulating foods, pay attention to keeping warm, drink more water, and eat more fruits and vegetables containing fiber, such as kiwi, apples, spinach, etc.