The best way to prevent stomach cancer is to have gastroscopy in time and to develop good diet and living habits. Early stage gastrointestinal cancer can be cured for 90% of patients after standardized treatment. Cancer is not exclusive to the elderly” The number of gastric cancer in China accounts for about 50% of the number of gastric cancer in the world. Among the high incidence tumors in China, stomach cancer ranks second in incidence and third in mortality.” Overall, the incidence of gastric cancer shows an increasing trend with age, and is common in the 40-60 age group, while male patients are about twice as common as females. Today, the incidence of stomach cancer is increasing nationwide and is trending younger, and young and middle-aged people also need to pay attention to cancer prevention knowledge. The reality of gastric cancer diagnosis and treatment is still severe, and there are “three highs” and “three lows”, which are high incidence rate, high recurrence and metastasis rate, high mortality rate, low early diagnosis rate, low radical resection rate, and low 5-year survival rate, so it is necessary to do a good job in popularizing the basic knowledge of gastric cancer prevention. Therefore, it is necessary to do a good job of popularization and popularize basic knowledge of gastric cancer prevention. Risk groups and risk factors] There are many risk factors for gastric cancer. Helicobacter pylori (HP) infection can increase the risk of gastric cancer by two times. If H. pylori infection has been detected and there is discomfort in the stomach, it should be treated as soon as possible. ” The existence of high incidence areas of gastric cancer may be related to dietary habits and geographical environmental factors: the northwest region represented by Qinghai, Gansu and Ningxia, and the southeast coastal regions such as Jiangsu, Shanghai, Zhejiang and Fujian have high incidence of gastric cancer, while Guangdong, Guangxi and Guizhou are low incidence areas. In Guangdong, northern Guangdong is the high incidence area, and the incidence rate in rural areas is 60%-70% higher than that in urban areas. Stomach cancer can also be said to be an “eaten tumor”. High levels of carcinogens or former carcinogens such as nitrites, fungal toxins and polycyclic aromatic hydrocarbon compounds in food can increase the risk of cancer. He pointed out that Chinese people’s habits such as skipping breakfast, irregular diet, fast eating, overeating, eating leftovers, and preferring hot food can lead to stomach cancer. Studies also show that the incidence of stomach cancer, especially gastroesophageal junction cancer, doubles in people who smoke. Long-term heavy drinking can easily lead to recurrent gastritis and gastric ulcer, which is the breeding ground for gastric cancer. According to epidemiological survey, about 10% of gastric cancer cases have a tendency to gather in families. If parents and other first-degree relatives are suffering from stomach cancer, the risk of stomach cancer for children is 2 to 3 times higher than that of ordinary people. To keep away from stomach cancer, it is important not to eat moldy food, and to eat less or no smoked, pickled and soaked food. Eat regularly, do not overeat, do not eat hard, brown or hot food, and practice meal sharing to reduce H. pylori cross-infection. A large prospective study found that the risk of gastric cancer was 44% lower in the high intake group compared to the low daily fruit and vegetable intake group. Consumption of onion and garlic vegetables may also reduce the occurrence of stomach cancer. Bad habits that are likely to trigger gastric cancer are summarized below, which should be avoided as much as possible Fast eating, overeating, eating leftovers, hot food, eating moldy food, smoking and drinking. However, there is no “once and for all” solution for tumor treatment. The risk of recurrence is always present, and even after radical surgery, 30%-80% of local or distant recurrences still occur. Because a single cancer cell may have spread before surgery, and the tumor cells can spread to other tissues and organs via blood circulation and lymphatic system. It is very important to follow up patients after gastric cancer surgery, which is an important part of early detection of metastatic recurrence. If a patient has undergone radical surgery, it is recommended to review once in 3-6 months for the first two years, and once in half a year for the next three years. 5 years later, it can be considered as cured gastric cancer, but it needs to be reviewed once a year. Prevention] People should “protect their stomach” in middle age and have gastroscopy early if they are not feeling well. Early gastric cancer has no special signs and symptoms, so the best way to prevent cancer is to have gastroscopy screening in time and to develop good diet and living habits, especially for those who have high risk factors mentioned above, they need to pay attention to my awareness of prevention. Early stage gastric cancer can be cured by standardized treatment, 90% of the patients can be cured.