胆汁酸与结直肠癌的发生关系密切,近年来有很多关于胆汁酸促结直肠癌发生的研究取得了很大的进展,完善了结直肠癌的病因学研究。本文对胆汁酸的分类、其促结直肠癌发生的机制以及引起高胆汁酸的危险因素和拮抗高胆汁酸促癌作用的因素作简要综述。1胆汁酸的分类胆汁酸按来源分为 Bile acid and colorectal cancer are closely related to the occurrence of bile acid in recent years, many studies have made great progress in colorectal cancer, improve the etiology of colorectal cancer. This article summarizes the classification of bile acids, their mechanism of promoting colorectal cancer, the factors that cause high bile acid and the factors that antagonize the effect of high bile acid. A classification of bile acids Bile acids are divided according to the source