鉴于目前我国未婚同居现象增加以及部分地区早婚现象,人工流产者显著增多而使继发性不孕有所增加。尤其是人工流产后导致继发性不孕如Kichaff提出的流产后子宫颈管及内口损伤与瘢痕性变而发生峡部、宫颈机能不全,子宫内膜损伤与退变形成宫腔粘连招致受精卵着床障碍以及输卵管通过性障碍等所致的不孕。国内对人流术后的并 In view of the current situation of unmarried cohabitation in China and the phenomenon of early marriage in some areas, the number of induced abortion increased significantly and the number of secondary infertility increased. Especially after induced abortion caused by secondary infertility such as Kichaff proposed post-abortion cervical canal and mouth injury and scarring occurs occurs isthmus, cervical insufficiency, endometrial damage and degeneration of the formation of intrauterine adhesions lead to fertilized eggs Impotence and tubal obstruction caused by sexual disorders such as infertility. Domestic abortion after the merger