There is no standard for the specific survival time, but the survival period of most patients with advanced gastric cancer is about 3-6 months. At this time, the main consideration is post-operative metastasis or recurrence of gastric cancer, even including the possibility of pyloric obstruction. At this time, since the patient is not able to eat, the immunity of the body is drastically reduced, which easily leads to various kinds of malnutrition and anemia, all of which aggravate the possibility of death of the patient. Therefore, once patients with gastric cancer have poor diet or nausea or vomiting, they should actively take antiemetic solutions, even including fasting and water, and give intravenous or enteral nutrition, which may prolong the survival of gastric cancer in late stage.