If you are hungry but have no appetite, it may be caused by indigestion or gastritis, etc. You can eat some appetizing food or apply medicines. 1. Indigestion: slow gastrointestinal peristalsis in this group of people can lead to a decrease in gastrointestinal digestion, resulting in hunger and lack of appetite, abdominal bloating, abdominal pain and other symptoms, in this case you can choose light, sweet and sour food such as sauerkraut to appetizing, but also under the guidance of the doctor to promote gastrointestinal peristalsis of the drug, such as Domperidone, Mosapride, and so on. 2. Gastritis: Stress, Helicobacter pylori infection can lead to the occurrence of gastritis, which can also lead to hunger and lack of appetite, nausea, vomiting, bloating and abdominal pain. Acid suppressants such as omeprazole and gastric mucosa protectants such as colloidal bismuth can be used. If there is Helicobacter pylori infection, eradication treatment should be carried out by the quadruple method, i.e. one proton pump inhibitor such as omeprazole + one bismuth such as colloidal bismuth + two antibiotics such as amoxicillin and clarithromycin. Prolonged hunger but no appetite should go to the hospital and take medication under the guidance of a doctor if necessary.