近年来大肠癌的发生率在西欧、北美以及部份南美国家有明显增长趋势,但治疗后的五年生存率尚停留在30—50％左右,主要原因是大肠癌的早期诊断尚有一定困难。因此国内外对大肠癌检查方法的改进,都极为重视,也取得了一些进展。但还有待进一步寻找更为简便和正确率高的检查方法,今将目前一些常用的检查方法,简要地综述于下。 In recent years, the incidence of colorectal cancer has increased significantly in Western Europe, North America, and some South American countries. However, the five-year survival rate after treatment remains at about 30-50%. The main reason is that early diagnosis of colorectal cancer is still difficult. . Therefore, both at home and abroad have attached great importance to the improvement of colorectal cancer examination methods and have made some progress. However, we still need to find more convenient and accurate inspection methods. Now we will briefly review some of the commonly used inspection methods.