80% of stomach cancer patients have no obvious symptoms at the early stage, and a few of them may have indigestion, epigastric pain and other uncomfortable symptoms.
Most stomach cancer patients have no characteristic and obvious symptoms in the early stage, and a few of them have fullness and bloating in the left upper abdomen, hidden pain, loss of appetite and dyspepsia, which are not easy to distinguish from chronic gastritis and gastric ulcer, etc. However, stomach cancer patients will lose weight due to the consumption of malignant tumors, so they should pay attention to the unexplained loss of body weight, and actively consult doctors for checkups.
High risk factors of stomach cancer include Helicobacter pylori infection, high salt diet, heredity and precancerous lesions, etc. Therefore, Helicobacter pylori infected patients, those who often consume salted and smoked food, those with family genetic history and those with long-term atrophic gastritis, gastric polyps or gastric ulcers should pay attention to the emergence of gastric symptoms, such as sudden onset of gastric pain or change of regularity, etc., and if so, they should consult doctors in a timely manner.
Most of the stomach cancers are not obvious in the early stage and are already in the middle or late stage when they are diagnosed after symptoms appear. Therefore, those who have the above high-risk factors, unexplained weight loss and persistence or change of stomach symptoms should be vigilant and go to the doctor for examination and identification, so as to achieve early detection, diagnosis, and treatment of gastric cancer in order to improve the survival rate.