Frequent flatulence in the stomach is not necessarily due to stomach cancer. Stomach cancer is one of the causes of gastric distension, and other stomach diseases such as gastritis, gastric ulcer, indigestion and mental stress can also lead to frequent gastric distension. Frequent gastric distension can be caused by the weakening of gastric peristaltic ability, which may have some relationship with patients’ usual life and rest, mental stress and dietary habits, such as irregular diet or eating indigestible, fried and spicy food, which can lead to gastrointestinal disorders and gastric distension. The early symptoms of stomach cancer are more similar to chronic gastritis and peptic ulcer, and symptoms such as stomach bloating and stomach pain may appear. If patients have a history of chronic gastritis and gastric ulcer, and their symptoms worsen in a short period of time and cannot be relieved by taking drugs, and they experience weight loss and anemia, it is recommended to go to the gastroenterology department of the hospital for stomach cancer screening. Patients with frequent gastric distension need to pay attention to regular diet, reasonable rest and combination of work and rest, and can follow medical advice to take appropriate oral medication to relieve symptoms.