Stomach tumors are divided into benign and malignant. After surgery, if the tumor is benign, with aggressive treatment, it will have very little impact on life; however, if it is a malignant tumor, after surgery, the overall five-year survival rate is about 30%. Generally benign tumors usually do not have much impact on the survival period of patients after surgery. Benign gastric tumors can be classified as elevated, superficial, or depressed, such as gastric adenocarcinomas, polyps, and smooth muscle tumors. In the case of advanced malignant tumors, they are classified as ulcer-limited, ulcer-infiltrating, and diffusely infiltrating. According to the pathology, there are adenocarcinomas, adenosquamous carcinomas, medullary carcinomas, imprinted cell carcinomas, squamous cell carcinomas, undifferentiated carcinomas, small cell carcinomas, etc. The degree of malignancy of each type varies. The degree of malignancy of each type is different, the treatment measures are not the same, and the survival time after surgery is also very different. Combination of chemotherapy (e.g., mitomycin, cisplatin, doxorubicin, etc.) and immunotherapy after surgery may also improve the survival rate. Conservative treatment can be chosen, and overall its five-year survival rate is generally no more than 30% on average. Early detection, diagnosis and treatment of gastric cancer have a great impact on the survival time, so you should have regular medical checkups, and once detected, you should follow the doctor’s instructions for diagnosis and treatment.