胃癌是人体最常见的癌肿之一。在我国胃癌居各类恶性肿瘤死因的第一位。为了采取有效的预防措施,降低胃癌的发病率,近几十年来国内外学者对胃癌的病因开展了较为广泛的研究,认为胃癌的发生是环境因素和机体内在因素相互作用的结果。 Gastric cancer is one of the most common cancers in the human body. In China, gastric cancer ranks first in the cause of death of various malignant tumors. In order to take effective preventive measures and reduce the incidence of gastric cancer, domestic and foreign scholars have conducted extensive research on the etiology of gastric cancer in recent decades. It is believed that the occurrence of gastric cancer is the result of the interaction between environmental factors and internal factors.