What are the bad habits that increase the risk of stomach cancer? 1. Long-term smoking and drinking strong alcohol. 2. Long-term consumption of smoked, salted and moldy foods such as smoked fish, cured meat and sausages. 3.Long-term mental depression, etc. Can gastric cancer be detected and diagnosed at an early stage? For patients suffering from chronic atrophic gastritis, over 40 years old, family history of gastric cancer, as well as chronic gastric ulcer, gastric polyp, atrophic gastritis, etc., they should have annual physical examination and gastroscopy for early detection of gastric cancer. What are the main causes of gastric cancer? 1.Dietary factors: Diet is closely related to the development of gastric cancer. Irregular meals, hungry and full meals, and improper diet are indisputable causes of gastric cancer. 2.H. pylori infection: H. pylori infection in the stomach is one of the important causes of gastric cancer, and the World Health Organization has designated H. pylori as a primary carcinogen for the occurrence of human gastric cancer. Genetic factors: The role of genetic factors in the etiology of gastric cancer is relatively certain, and there is an obvious tendency of family gathering. It is generally believed that the incidence rate of gastric cancer among relatives of gastric cancer patients is 4 times higher than that of the control group. 4. Chronic gastritis: There is a close relationship between gastric cancer and chronic gastritis, especially atrophic gastritis. What are the characteristics of gastric cancer in young people? 1. Women are the majority: the general ratio of male to female gastric cancer is 2.3-3.6U1, while the incidence of gastric cancer among young women is significantly higher, with the ratio of male to female being 1U1.3-2.6. 2. Easy to be missed and misdiagnosed: young people often think they have gastritis, ulcer disease, indigestion, etc. when they have discomfort symptoms such as pain and stuffiness in upper abdomen. As it is difficult to undergo gastroscopy under ordinary circumstances, most young people will take “stomach medicine” without permission, so that the condition is delayed again and again, and mistakes are made again and again. The rate of missed and misdiagnosis is as high as 27%, that is to say, one out of every four people will be missed and misdiagnosed. 3. Atypical symptoms: The symptoms of stomach cancer are atypical and easily confused with gastritis, ulcer disease, indigestion and other gastrointestinal diseases and systemic diseases, and the symptoms are even more atypical due to the physical condition and tolerance of young people. 4. High malignancy: Among young gastric cancer patients, mucinous adenocarcinoma and low differentiated adenocarcinoma, which have higher malignancy, account for most of the pathological types.