Heartburn can be caused by chronic gastritis, peptic ulcer or esophagitis. 1. Chronic gastritis: chronic gastritis can manifest as abdominal pain, bloating, stomach acid, heartburn and other symptoms, you can take omeprazole to inhibit gastric acid secretion. 2. peptic ulcer: heartburn when hungry is caused by excessive secretion of stomach acid, which can cause corrosive effects on the stomach, followed by acid reflux, heartburn symptoms, and even cause gastric ulcer and duodenal ulcer serious consequences. It can be treated by taking omeprazole acid suppressant and bismuth potassium citrate gastric mucosa protector. 3. Reflux esophagitis: When the pressure at the esophagus decreases, or when the pressure at the stomach increases due to too much food over a long period of time, gastric reflux stimulates and causes esophagitis. Esophagitis is often characterized by acid reflux, chest burning and foreign body sensation. It can be treated by taking omeprazole acid suppressants. Acid heartburn, there are other causes, it is recommended to actively consult the doctor, improve the examination, clarify the cause of the disease, symptomatic treatment. Drugs need to be applied under the advice of a doctor, the people during the treatment period should maintain a light diet, avoid spicy and stimulating diet.