Stomach cancer is usually not easy to be detected because there are no specific symptoms in the process of occurrence, and most of them are diagnosed at an advanced stage, which is regrettable! The stage of tumor determines the survival rate of patients; according to statistics, the 5-year survival rate of patients with stage IV gastric cancer is only 4.0%, while early stage can reach over 70%. Therefore, the earlier stomach cancer is detected, the better its prognosis is. So what are the symptoms of early gastric cancer? 1. Upper abdominal pain Initially, people only feel discomfort in upper abdomen, or have abdominal distension or abdominal pain, which is easily mistaken as the pain of old disease “gastritis” or “gastric ulcer”, and take gastric medicine hastily. If the nature and pattern of pain has changed and has not improved after 3 months of conventional treatment, the relevant examination should be carried out as soon as possible. Loss of appetite About 50% of gastric cancer patients have loss of appetite or loss of appetite before diagnosis, which is manifested as no appetite, discomfort after meals, aversion to eating, etc. 3.Unexplained wasting As tumor competes with human body for nutrition in the process of growth, the weight of patients will drop significantly within 3-6 months. 4. Nausea and vomiting Tumor causes gastrointestinal disorder, which may cause patients to feel full and nauseous. 5.Bleeding Early gastric cancer patients may bleed, but the amount of bleeding is usually small and difficult to be detected by patients, usually through gastroscopy or stool occult blood test. The above symptoms are not specific to early gastric cancer, that is to say, even if you have the above symptoms, you may not necessarily have gastric cancer; it is worth mentioning that if you have the above symptoms, it is recommended to go to the hospital for corresponding examination as soon as possible for peace of mind.