大肠癌是常见的恶性肿瘤,其病因尚不清楚,早期确诊仍有困难,手术治疗后五年生存率比较低,对人民健康和生命危害性甚大。为了研究大肠癌的发生和发展规律,吸取这方面的研究经验,我们查阅一些文献,综述于下。 Colorectal cancer is a common malignancy. Its cause is not yet clear. Early diagnosis is still difficult. The five-year survival rate after surgical treatment is relatively low, and it is very harmful to people’s health and life. In order to study the law of the occurrence and development of colorectal cancer and draw on the research experience in this area, we have reviewed a number of literatures and reviewed them below.