Abstract:Objective To determine the efficiency and safety of Phloroglucinol and Misoprostol for cervix pretreatment before diagnostic hysteroscopy. Methods Trials were located through electronic searches of the PubMed, MEDLINE, Springer, CNKI, VIP, CBM, WanFang Data (from the date of establishment of the databases to June 2015). Bibliographies of the retrieved articles were also checked. Result A total of 18 trials involving 2 341 patients were included. The Meta-analysis showed: application of Phloroglucinol lenovo better open and dilate the cervix [OR = 2.95, 95 % CI (1.96, 4.45), P = 0.000]; To better clarity of the operative field [OR = 9.50, 95 % CI (6.46, 13.98), P = 0.000]; To better shorten the operation time [OR = -4.12, 95 % CI (-5.75, -2.49), P = 0.000]; To better able to reduce the amount of intraoperative leakage [OR = 0.22, 95 % CI (0.10, 0.49), P = 0.0002]; and postoperative adverse reactions should be significantly lower than Misoprostol [OR = 0.01, 95 % CI (0.00, 0.04), P = 0.000]. The difference was statistically significant. Conclusions Phloroglucinol is more effective and safer than Misoprostol in inducing proper cervical priming and may be the optimal choice for cervical pretreatment before diagnostic hysteroscopy.