Early stage stomach cancer patients usually have no obvious changes, and only a few patients will have indigestion, epigastric discomfort, belching (hiccups) and so on. Early stage stomach cancer patients mostly have no self-conscious symptoms or insignificant symptoms, and some people may have epigastric discomfort, always feel indigestion after eating, loss of appetite, belching (hiccups) and so on. As the disease progresses, the symptoms will appear gradually. Early diagnosis of gastric cancer is mainly through patient history, clinical manifestations, gastroscopy, histopathological examination and other comprehensive methods. Since there is no specific clinical manifestation in early stage of gastric cancer, the consultation rate of patients is relatively low, resulting in low diagnosis rate of early stage of gastric cancer. It is recommended that people with family history of stomach cancer and stomach disease should go to hospital for regular checkup. It is recommended that patients should pay attention to the discomfort and go to hospital as early as possible to get a clear diagnosis under the guidance of doctors.