The incidence of gastric cancer has been on the rise in recent years, and its mortality rate has been increasing year by year. Usually patients in early stage of stomach cancer have the following symptoms: Most patients in early stage of stomach cancer have no obvious clinical symptoms, a few of them will have nausea, vomiting, belching, and upper gastrointestinal symptoms similar to ulcer disease, such as upper abdominal discomfort, fullness after eating, acid reflux and so on. Also, patients with early stage of cancer may experience abdominal pain, dull pain, vague pain, and weight loss. If symptoms such as vomiting blood, black stool and difficulty in swallowing occur in the early stage of cancer, it is important to seek medical consultation promptly because it is highly likely that the cancer has already progressed and become advanced patients. If patients experience epigastric discomfort in daily life, and it cannot be relieved after eating, gradually increasing pain, loss of appetite, and iron anemia and megaloblastic anemia, and sometimes nausea and vomiting. Usually these symptoms are the precursors of stomach cancer, so it is recommended to go to hospital for examination and treatment in time to prevent delay. Usually, patients with stomach cancer will have the above symptoms, and once the disease is diagnosed, they should take timely treatment, such as radiotherapy, chemotherapy or surgery. At the same time, it is necessary to maintain a good state of mind to face the disease.