Stomach pain when hungry is caused by increased secretion of gastric acid during fasting, and may be present in duodenal ulcer, chronic gastritis and other diseases. 1. The typical symptom of duodenal ulcer is hunger stomach pain, which usually manifests as burning or dull pain in the upper abdomen or under the raphe. Hunger stomach acid secretion part, because there is no content in the stomach, stomach acid into the duodenum, aggravate the ulcer at the same time the acid causes gastrointestinal spasm caused by pain, and will in turn stimulate the secretion of gastric acid. 2. The cause of duodenal ulcers is usually Helicobacter pylori infection, so the treatment is based on antacid and anti-infection. Antacid can be given to omeprazole, cimetidine and other drugs; anti-infection can be given to the patient amoxicillin, clarithromycin and so on. The use of drugs should follow the doctor’s instructions. 3. The most common cause of chronic gastritis is also related to Helicobacter pylori infection, and the treatment is mainly acid-suppressing treatment, anti-Helicobacter pylori treatment, and the treatment of drugs is similar to that of duodenal ulcer. Gastroparesis patients should actively consult the doctor to clarify the cause of the disease and then standardize the treatment.