Functional dyspepsia is a condition in which there is no organic pathology of the stomach and duodenum, and the dysfunction triggers symptoms such as postprandial fullness, early satiety, abdominal pain, and burning sensation. Functional dyspepsia is abbreviated as FD, and the etiology may be related to gastrointestinal dyskinesia, visceral sensory hypersensitivity, decreased tolerance diastolic function of the stomach, and increased gastric acid secretion. The main symptoms of FD are postprandial fullness, early satiety, abdominal pain, lack of appetite, and nausea. The onset of the disease is slow, with persistent or recurrent episodes. Other patients may be accompanied by mental symptoms such as anxiety and insomnia. The treatment of FD mainly includes general treatment and medication, and commonly used drugs include acid inhibitors such as omeprazole and gastrointestinal stimulants such as domperidone. If diagnosed with FD, you should seek medical treatment in a timely manner, do not take medication without authorization, eat small meals on weekdays, quit smoking and drinking, regular work and rest, and exercise appropriately.