Early gastric cancer does not have characteristic symptoms, which are often manifested as vague pain in the upper abdomen, abdominal distension, loss of appetite, nausea and vomiting. Since these symptoms are not unique to early gastric cancer, it is easy to be diagnosed as general gastric disease. This is the main reason why patients are diagnosed late. Experts remind that once there is persistent stomach discomfort, especially those with the above-mentioned poor lifestyle, family history of digestive tract cancer, gastric ulcer, gastric polyp, chronic atrophic gastritis, Helicobacter pylori infection and other gastric cancer risk factors, they should go to regular hospitals for gastroscopy in a timely manner. It is recommended that people with risk factors of gastric cancer should undergo gastroscopy once a year after 40 years old (35 years old for smokers), which is an effective method for early detection of gastric cancer. Why is there a high incidence of stomach cancer? The occurrence of gastric cancer is related to increased work pressure and poor lifestyles. These bad lifestyles mainly include the preference of eating burnt, baked, fried, fried, smoked and hot food, as well as irregular meals, overeating, smoking, high-salt diet, love of pickled food such as kimchi, and low intake of protein and fresh vegetables and fruits. And these are undoubtedly more reflected in young people, and it can be said that young people are much more likely to be exposed to stomach cancer triggers than older people. According to the survey, the incidence rate of stomach cancer among young people under 35 years old in China is as high as 6%-11%, which is more than three times higher than that in foreign countries. What are the early signs of gastric cancer? 1. Upper abdominal pain: This is a common symptom of stomach cancer. It starts as intermittent vague pain and is often diagnosed as gastritis or ulcer disease, etc. 2.Upper abdominal discomfort: It is mostly a feeling of fullness or burning. It can be temporarily relieved and recurring. 3, loss of appetite, belching and other indigestion symptoms: manifested as a feeling of fullness after eating and active restriction of diet, often accompanied by recurrent belching. 4, black stool or positive fecal occult blood: If black stool occurs without eating blood tofu, taking bismuth and other drugs, you should come to the hospital for examination as soon as possible. 5.Lack of energy, emaciation and anemia: This is another common but non-specific symptom of stomach cancer. Patients often show fatigue and weakness due to loss of appetite and blood loss in digestive tract. Can gastric disease develop into gastric cancer? Can common gastric disease develop into gastric cancer? Yes, but not all common gastric diseases end in gastric cancer. Experts believe that patients suffering from the following 4 kinds of gastric diseases should pay extra attention to gastric cancer on the body. 1.Atrophic gastritis Most atrophic gastritis ends in gastric cancer, and some people even consider atrophic gastritis as “pre-cancerous gastric cancer”. It is recommended that patients with atrophic gastritis should undergo gastroscopy every 2 years to detect gastric cancer earlier. 2.Large gastric ulcers refer to ulcers larger than 2 cm in diameter. Once large ulcers are found, they should be treated immediately and for at least 6 weeks. After the ulcer is cured, it should also be reviewed regularly, and the interval between reviews is six months or one year. 3, polyps Once the stomach is detected with polyps, regardless of size, they should be removed, and pathological examination should be done. 4.Remnant stomach is called residual stomach when part of the stomach body is removed because of some disease. There is also a close connection between residual stomach and gastric cancer. Some studies have concluded that if the residual stomach exists for more than 5 years, the chances of developing gastric cancer increase. Therefore, patients with residual stomach who have undergone stomach surgery are reminded to have a gastroscopy every 1 year.