There are many friends who have chronic gastritis, gastric polyps and other gastric diseases and think it’s not a big deal, but will these old gastric diseases turn into cancer? We often say that gastric polyps, and some chronic atrophic gastritis, etc., is indeed what we call precancerous lesions, and there are also some patients who have had a partial gastrectomy due to ulcer disease, and this part of the patient may also become cancerous. Therefore, we have to be vigilant at all times. There is a report that a 20-year-old college student, from the first year of college, obsessed with the Internet, often all night, hungry, eat instant noodles, barbecue, cookies, the results often feel stomach pain, a check is actually the late stage of stomach cancer, breakfast is not available to eat, lunch to make up for it, and dinner to socialize to eat, overtime night school stalls to eat, which are some of the habits of the urban office workers, which is also very harmful to the stomach. Like this stomach disease, young people may be a relatively inattentive group, now the pressure of young people’s life, career pressure is very very big, often ignoring their dietary health, eating is very make do, or eat some stimulating food, work late at night and eat a lot of food, resulting in young people now the number of stomach disease caused by cancer is much higher. Is there any specific manifestation of stomach cancer? There is no specific manifestation of stomach cancer. Pain and weight loss are mainly the clinical symptoms of progressive stomach cancer, as gastritis may also cause abdominal pain, it is impossible to measure which is gastritis and which is stomach cancer by the degree, and most of the patients in early stage of stomach cancer do not have pain symptoms, but may have nausea, vomiting, or symptoms similar to ulcer disease, epigastric discomfort, fullness and bloating after eating which are the digestive symptoms, although the disease may be aggravated by pain, and may be accompanied by pain. As the disease progresses, there may be worsening of pain, loss of appetite and so on. In addition, there may be different clinical manifestations depending on the location of the tumor. For example, if the tumor in the esophagogastric conjunction, which was originally called cardia fundus carcinoma, is now called gastroesophageal conjunction carcinoma, the tumor in this area may cause retrosternal pain and progressive dysphagia, for example, tumors in the vicinity of pylorus and gastric outlet may cause pyloric obstruction, and then this kind of patients may show more symptoms, such as vomiting, abdominal distension, and so on. a vomiting, bloating these manifestations. Therefore, people with gastric disease should pay attention to the changes in the pattern and time of pain, and have regular checkups to improve vigilance. For patients who suspect gastric cancer, or suffer from gastric polyps, chronic atrophic gastritis, or gastric resection of the residual stomach, and who suffer from unexplained emaciation, they should go to the hospital to do gastroscopy in time to rule out gastric cancer.