[Updates of colonoscopy surveillance guidelines after screening and polypectomy, and related research progress].

With the widespread application of colorectal cancer screening, the surveillance and management of the increasing number of screened population has become a pivotal aspect in preventing and controlling colorectal cancer. In recent years, researches have been conducted on the risk of colorectal cancer incidence and mortality in the population after screening. At the same time, various organizations in Europe and the United States have continuously updated colonoscopy surveillance after screening and polypectomy based on the latest research evidence. In this review, we summarized the current progress of studies on colorectal cancer risk in post-screening colorectal cancer populations and the key points of relevant guideline updates, in order to provide a reference for conducting relevant studies and formulating surveillance guidelines or consensus in China.随着结直肠癌筛查的不断普及，筛查后人群的监测管理也成为结直肠癌防控的关键环节之一。近年来，针对筛查后人群的结直肠癌发病和死亡风险的研究证据不断涌现，同时，欧美国家的相关行业协会基于最新的研究证据，陆续更新了结肠镜检查和息肉切除术后的结肠镜监测指南。本文全面总结了目前关于结直肠癌筛查后人群的结直肠癌风险相关研究进展以及相关指南更新要点，以期为指导我国相关研究的开展以及监测指南或共识的制定提供参考。.