人工流产术作为育龄期妇女避孕失败的有效补救方法,临床应用较为普遍。由于人工流产手术中存在一定的盲区,故组织残留时有发生,处理方案有二次清宫术或药物保守治疗等。有研究提示,B超下残留物>4cm~2可以作为二次清宫术的手术指针,且有绒毛组的残留物大于无绒毛组~([1-2])。而B超报告残留物位于 As an effective remedy for contraception in women of childbearing age, induced abortion is more common in clinical practice. As a result of abortion there are some blind spots, so the organization often occur from time to time, there are two curettage cure or drug conservative treatment. Some studies have shown that, B ultrasonography residue> 4cm ~ 2 can be used as a secondary curettage operation pointer, and there is more residual villous group than the no hair group ~ ([1-2]). While B-Report Residue is located