If it is a benign stomach tumor, usually there will be relatively mild symptoms of stomach discomfort, and the development is relatively slow; malignant stomach tumor early self-consciousness symptoms are not obvious, with the progress of the disease may appear acid reflux, abdominal bloating, gastrointestinal bleeding and other discomforts. It is recommended to go to the hospital for timely diagnosis and targeted treatment to avoid delaying the disease and aggravating the symptoms. With the development of the disease, stomach tumor will stimulate the stomach wall, leading to gastric emptying obstacle, thus causing the pressure inside the stomach to increase, resulting in acid reflux, hiccups and other symptoms; it will also cause the smooth muscle contraction of the stomach wall to be weak, as well as digestive and absorptive dysfunction, resulting in abdominal bloating symptoms. When the surface of the stomach tumor breaks down, blood will be discharged in the digestive tract, resulting in symptoms such as vomiting blood or black stools.