Objective: To evaluate the curative effect of clindamycin treatment of woman with abnormal vaginal flora in pregnancy to reduce preterm delivery. Methods: The Pubmed、EMBASE、CBM、Wanfang Database and The Cochrane Library were searched from to June.2017.We performed a meta-analysis of published,randomized clinical trials of clindamycin treatment of woman with abnormal vaginal flora in pregnant women.The two reviewers independently extracted the data,and different opinions were resolved through discussion. All ...