Vomiting blood in the late stage of cancer is mostly seen as tumor rupture and also tumor obstruction. Bleeding from ruptured blood vessels of ulcerated tumors is a relatively common bleeding condition in cancer. Paying attention to gastrointestinal bleeding and the symptoms of common upper abdominal pain is one thing that every patient and doctor should pay attention to. Because of epigastric pain many people do not pay attention to it and only when it is advanced do they go for gastroscopy until they vomit blood, which is an important factor leading to the current high incidence and poor prognosis of middle and advanced gastric cancer. Therefore, it is very important to adopt early gastroscopy, early stool occult blood test and gastric cancer screening for gastric cancer. As the largest incidence cancer in the north, especially for men, long-term strain, special anger, long-term patience, irregular life, long-term irregular diet and long-term untreated, such factors superimposed together are the highest risk factors for the occurrence of gastric cancer in middle-aged and elderly people in the north, so people with these life characteristics should pay great attention to the occurrence of gastric cancer. The prevention and treatment of gastric disease should start from chronic gastritis and atrophic gastritis, and early treatment is a very important measure to prevent gastric cancer, and do not wait until gastric cancer patients bleed before treatment.