Conclusion For parturient woman with natural labor who are pregnant again with scar uterus after cesarean section，transvaginal trial of labor is effective should be encouraged.

    【Key words】 scar uterus with second pregnancy;transvaginal trial of labor;cesarean section;pregnancy outcome;complications

    剖宫产是解决难产或高危妊娠的一种手术方式，近年来国内剖宫产率持续上升，全国剖宫产调查显示平均剖宫产率达54.472%[1]。随着人口政策调整，既往高剖宫产率造成的瘢痕子宫妇女再次妊娠数量也在增加，国内对此类孕妇多数会采取再次剖宫产术(elective repeart cesarean setction ......