大肠癌根治术后肿瘤局部复发是治疗失败的主要原因 ,术后局部复发率在 10 %～ 30 % [1～ 3 ] 。本文通过分析大肠癌根治术后复发的相关因素 ,探讨预防和监测大肠癌复发及早发现局部复发病灶并进行治疗 ,从而达到提高生存率的目的。1　材料与方法1.1　临床资料　本文收集我院 19 Local recurrence of tumor after radical resection of colorectal cancer is the main reason for the failure of treatment. The local recurrence rate after operation is between 10% and 30% [1-3]. In this paper, the analysis of the recurrence of colorectal cancer related factors, to prevent and monitor the prevention and monitoring of recurrence of colorectal cancer and early detection of local recurrence of lesions and treatment, so as to achieve the purpose of improving survival. 1 Materials and Methods 1.1 Clinical data collected in our hospital 19