The statement of three pains in early stage of stomach cancer is inaccurate because the pain symptoms of early stomach cancer patients are not obvious, and most of them can be asymptomatic. Some patients in early stage of stomach cancer may show mild symptoms such as upper abdominal discomfort, pain, abdominal distension and loss of appetite. However, even if some of them have clinical manifestations, they lack specificity. With the development of cancer, discomfort symptoms such as persistent pain, nausea, acidity and abdominal pain may appear and gradually worsen. Because some patients do not focus on this symptom when it appears, it is easily confused with pain caused by peptic ulcer, chronic gastritis and other diseases, resulting in the discovery of the disease at an intermediate or advanced stage. Therefore, if symptoms are suspected, it is important to be alert and seek medical attention as soon as possible, including gastroscopy and histopathological examination. If you have irregular diet, history of gastric ulcer, or family history of gastric cancer, you should be alert to the occurrence of gastric cancer and have regular medical checkups. If gastric cancer is diagnosed, for patients with early stage of gastric cancer, radical surgery is the main way to treat gastric cancer, which requires removal of the primary lesion and clearance of regional lymph nodes. Radiation therapy is often used for painful bone metastases and painful pressure of tumor tissues, and if necessary, mucosal resection under gastroscopy and laparoscopic surgery can also be used for related treatment. The prognosis of gastric cancer is often closely related to the stage of gastric cancer, and early gastric cancer has better prognosis and higher cure rate. In daily life, we should pay attention to maintain a positive and optimistic attitude towards life, exercise appropriately and develop good living habits. In terms of diet, we should pay attention to a reasonable and balanced diet, avoid spicy, stimulating, cold and greasy food, develop the habit of eating slowly and chewing, and pay attention to eating less and more meals, quitting alcohol and smoking.