Objective:To study the effect of different adhesion preventing methods on reproductive outcomes after transcervical resection for moderate intrauterine adhesion. Methods:Totally 193 patients with moderate intrauterine adhesion after transcervical resection all used hormone cycles treatment. Patients were divided into three groups:balloon and ring group（79 cases）

single balloon group（60 cases）and single gel group（54 cases）according to postoperative adhesion prevention methods. The pregnancy rate

live birth rate

repeated cutting rate

pregnancy outcomes and intrapartum complication were investigated. Results:There were 184 cases having fertility requirement and a total of 126 cases had pregnancy（pregnancy rate =68.48%）. The pregnancy rates of three groups were72.37%

75.86% and 54.00% with the statistical difference among three groups（P =0.032）. Live birth rates of three groups were46.05%

50.00% and 30.00% with no significant difference among three groups（P=0.086）. There was no significant statistical difference in miscarriage rate

premature birth rate

full term yield rate

complications incidence of postpartum hemorrhage

placenta conglutination

placenta previa and placenta increta among three groups. Conclusion:There is no statistical difference in reproductive outcomes of patients with moderate intrauterine adhesion after transcervical resection using different preventing methods. But the postoperative pregnancy rate and live birth rate of balloon and ring group and single balloon groups may be superior to single gel group.