There are more symptoms in the three days before terminal stage of stomach cancer, such as pain, body wasting, breathing difficulty and so on. 1. Pain, cancer cells spread and metastasize all over the body, causing damage to the nervous system, resulting in persistent and severe pain, which needs to be treated with morphine analog painkillers. 2. Wasting: Cancer itself is a consuming disease, coupled with the fact that the amount of food in late stage of gastric cancer is reduced or even completely unable to eat, resulting in nutritional deficiencies, therefore, there will be wasting, edema, jaundice and so on. 3. Difficulty in breathing, when cancer cells metastasize to lungs, it will cause slowing down and difficulty in breathing, if liver metastasis occurs, there will also be ascites, distension and pain in right upper abdomen, edema and other manifestations. The prognosis of advanced gastric cancer is poor, and the main treatment principle should be to alleviate patients’ pain and prolong their survival period.