Abdominal pain, vomiting, black stool, mass and other symptoms will appear in gastric sinus cancer, but there is no such thing as 8 symptoms of gastric sinus cancer. 1. Abdominal pain: the pain mostly appears in the upper abdomen, and the nature of pain includes dull pain, distension, sharp pain, burning pain, discomfort when hungry and so on. The pain is recurrent and cyclical, with varying lengths of relief, and mostly develops in the alternation of winter and spring seasons. 2. Vomiting: Tumor growth of gastric sinus cancer will lead to partial obstruction or complete obstruction of pylorus to a certain extent, at this time, patients will have vomiting symptoms, and the vomit is mostly overnight food and gastric juice. 3. Black stool: if the tumor breaks down and invades the surrounding blood vessels, the symptoms of black stool and vomiting blood will appear. 4. Lump: there are no obvious symptoms in the early stage, but with the progress of the disease, the lump in the upper abdomen can be touched, which is hard and fixed. 5. Other symptoms: In addition to the above symptoms, there are symptoms such as loss of appetite, fatigue, emaciation, weight loss, ascites, jaundice and so on. If the above symptoms occur, it is recommended to consult a doctor in time to avoid delaying the condition.