胃镜应用于临床已有近百年的历史,近10年来由于纤维胃镜的应用,可窥视、活检、细胞学检查和摄影,已使胃部疾病的诊断水平显著提高。过去胃癌的发病率和死亡率均占整个恶性肿瘤的一、二位(男性)。近年发现早期胃癌病灶局限于粘膜层或粘膜下层者其术后5年存活率各为93％和89％,如癌肿已侵及 Gastroscopy has been used clinically for nearly a hundred years. In the past 10 years, the use of fiberoptic gastroscopes for peeping, biopsy, cytology, and photography has led to a significant increase in the diagnostic level of stomach diseases. In the past, the incidence and mortality of gastric cancer accounted for one or two (males) of the entire malignancy. In recent years, it has been found that early-stage gastric cancer lesions confined to the mucosa or submucosa have 5-year survival rates of 93% and 89%, respectively, if the cancer has invaded.