Functional dyspepsia is a clinical syndrome and the leading cause of early satiety. Almost everyone has been afflicted by dyspepsia at one time or another, so doctors are already experienced in diagnosing it. However, very often, some symptoms of dyspepsia can indicate serious diseases, which requires the attention of clinicians to pay attention to and identify. Diagnosis: 1. Family history of tumor should be paid attention to, age 40 years or older as a reference, but should be closely combined with clinical. For example, if there is a family history of gastric cancer, and the age is over 40 years old, and there is a recent symptom of dyspepsia, you need to be highly alert and conduct relevant examination to exclude tumor diseases. 2.For patients with obvious emotional factors and psychological disorders, relevant examinations should be conducted in time, which is of positive significance to clarify the condition and make early diagnosis. 3.If the patient does not have the above conditions and is in good general condition, or has already received relevant examination in the past, and the symptoms have recurred recently, or cannot receive relevant examination temporarily, empirical treatment can be used. Empirical treatment should be combined with the symptom characteristics of dyspepsia and the relationship between symptoms and meals, and speculate on its possible pathophysiological basis.