When you are hungry but can’t eat anything, consider functional dyspepsia, chronic gastritis, gastric cancer, etc. The main treatments are medication and surgery, and you have to choose the appropriate treatment according to the specific cause. 1. Functional dyspepsia: this is caused by the dysfunction of stomach and duodenum, you can use drugs to promote gastrointestinal dynamics (such as Itopride, Mosapride), digestive enzyme preparation (such as multi enzyme tablets) to improve the digestive function. 2. Chronic gastritis: chronic gastritis is a chronic inflammation of gastric mucosa, most of which is related to the infection of Helicobacter pylori, with symptoms such as discomfort in the middle and upper abdomen, nausea, etc. It can be treated with quadruple therapy to cure Helicobacter pylori, and it can be improved by using medicines promoting gastrointestinal dynamics (e.g., Itopride and Mosapride). 3. Tumors of digestive tract: for example, esophageal cancer, gastric cancer, which are malignant tumors originated from the mucosa of digestive tract, early symptoms are abdominal pain, and anorexia may also occur, the main treatment is surgery, including radical surgery and non-radical surgery, and may need to be combined with radiotherapy and chemotherapy after surgery. There may be other reasons why you are hungry but can’t eat anything, so we suggest that you go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.