[Bowel preparation before colorectal surgery].

High quality bowel preparation is a necessary part of preoperative preparation for colorectal surgery and one of the keys to the success of surgery, which directly affects the quality of intraoperative procedures and postoperative recovery of patients. Conventional intestinal preparation mainly includes three aspects: preoperative dietary control, intestinal cleansing and prophylactic use of antibiotics. With the development of evidence-based medicine, the concepts and methods of bowel preparation have also changed. Long fasting is no longer advocated before surgery, and the traditional mechanical bowel preparation are also challenged. This article summarizes the application and research progress of different intestinal preparation methods before colorectal surgery, aiming to provide reference for clinical work of colorectal surgeons. 高质量的肠道准备是结直肠术前准备的必要环节和手术成功的关键之一，直接影响术者术中操作质量和患者术后恢复。一般的肠道准备主要包括：术前饮食控制、机械性肠道准备与预防性使用抗生素三个方面。随着循证医学的发展，肠道准备的观念与方式也发生着变化，术前不再提倡长时间的禁食，传统的机械肠道准备方案也受到挑战。本文针对不同肠道准备方法在结直肠手术前的应用与研究进展进行总结，旨在为结直肠外科医生临床工作提供参考。.