It is possible to cure stomach cancer in the middle stage, and the 5-year survival rate can reach about 50%. Surgery is the main treatment, together with medication as well as radiotherapy to prevent cancer cells from metastasizing and spreading. Gastric cancer is a common malignant tumor, mainly related to environmental factors, dietary factors, genetic factors, etc. It is divided into early, middle and late stages. Early stage is often mistaken as gastritis, and the prognosis is relatively good if the patient consults the doctor in time for regular treatment. In the middle stage, nausea, vomiting, indigestion and other symptoms will appear, which may be cured by surgery, radiotherapy and chemotherapy, and if it develops to the late stage, jaundice, wasting, anemia and other symptoms will appear, which has a poor prognosis. It is recommended that patients go to the hospital for regular medical checkups for early detection and treatment. Normally, we should pay attention to develop good dietary habits, eat less stimulating food, and maintain a good state of mind.