目的 :探讨大肠癌变息肉临床表现、组织学特征和内镜诊疗特点。方法 :将结肠镜检出的大肠息肉患者的临床表现、内镜及病理资料按有无癌变分组 ,进行回顾性分析。结果 :大肠息肉癌变组年龄较大、便血发生率较高 ;息肉体积越大、呈分叶或菜花形、多发性息肉者易发生癌变 ;息肉癌变者均为腺瘤性息肉 ,含绒毛成份越多 ,越易发生癌变。结论 :大肠息肉癌变与体积大小、形态、绒毛成份含量等因素相关 ;早期息肉癌变者 ,可在内镜摘除癌变息肉后密切追踪 ,不必经腹手术治疗 Objective: To investigate the clinical manifestations, histological features, and endoscopic features of colorectal polyps. METHODS: The clinical manifestations, endoscopic and pathological data of patients with colorectal polyps detected by colonoscopy were classified according to whether there was cancerous or not. A retrospective analysis was performed. Results: Large intestine polyposis cancer group older, higher incidence of blood in the stool; polyp volume, leafy or cauliflower, multiple polyps are prone to cancer; polyposis are adenomatous polyps, containing more villus components More, the more cancerous it is. Conclusion : Colorectal polyposis is related to factors such as volume, shape and content of villous components. Early polyposis can be closely tracked after endoscopic removal of cancerous polyps without having to undergo abdominal surgery.