剖宫产切口瘢痕缺损（cesarean scar diverticulum，CSD）是剖宫产术后的远期并发症之一，临床常见症状除阴道不规则流血、不孕、盆腔痛等症状外，再次妊娠后的产科风险也引起了临床医生的关注。文章围绕CSD的分类与生育风险评估、CSD再次妊娠风险评估、预防CSD及相关妊娠风险等三方面内容结合我国2019年制定的CSD专家共识，将CSD的分类、分度与再次妊娠时的生育风险、生殖结局及如何预防等进行阐述与讨论，为临床评估与处理此类疾病提供依据。

Cesarean scar diverticulum（CSD）is one of the long-term complications after cesarean section. The clinical common symptoms are irregular vaginal bleeding，infertility，pelvic pain and other symptoms.The obstetric risks in re-pregnancy also concern the clinicians.This paper focuses on the classification of CSD，the assessment of reproduction risk and re-pregnancy of CSD，the prevention and related pregnancy risk of CSD，by combination with an expert consensus on the diagnosis and treatment of CSD in China in 2019. Our goal is to explore the classification, grading，re-pregnancy risk，reproductive analysis and prevention of CSD，so as to provide basis for clinical evaluation and treatment of this kind of disease.