Stomach tumors include gastric cancer. Stomach tumors are divided into benign tumors and malignant tumors, while gastric cancer refers to a category of malignant tumors originating from stomach cells, i.e., gastric cancer belongs to a category of gastric tumors. Benign tumors of stomach include cysts, benign mesenchymal tumors, adenomas and so on; malignant tumors of stomach include various types of gastric cancer, lymphoma, malignant mesenchymal tumors, neuroendocrine tumors, gastric sarcoma, and metastasis of malignant tumors to stomach and so on. Clinically, benign tumors of stomach generally have good prognosis, and regular follow-up and review can be done after surgical resection; while malignant tumors of stomach generally have poor prognosis, especially gastric cancer, which should be detected and diagnosed as early as possible and treated as early as possible. Therefore, if any discomfort occurs, it is recommended to consult a doctor in time to avoid aggravation of the condition due to delayed treatment.