The symptoms of pre-stomach cancer are as follows: a. Some pre-stomach cancer has no obvious symptoms or discomfort, which are mostly found during physical examination. Secondly, most patients can show uncomfortable symptoms such as gastric distension, acid reflux, heartburn, loss of appetite, weakness and lethargy in early stage, and due to the influence of long-term feeding, they can also show symptoms of anemia, such as weakness, lethargy and dizziness. When the above symptoms should be paid attention to, promptly go to the hospital, perform gastroscopy can be clearly diagnosed. Besides, some patients may have abdominal distension, belching, stomach pain and other discomforts in the early stage of stomach cancer, and the respiratory test is positive, and the symptomatic treatment and anti-H. pylori treatment are ineffective. Therefore, when the above symptoms appear, we must pay attention to them and go to the hospital in time for gastroscopy, so as to detect, treat and diagnose the abnormalities early. If gastric cancer is found late and there is no chance of surgery, conservative treatment is the main treatment, and patients’ postoperative recovery is relatively poor and five-year survival rate is relatively low.