经阴道超声检查较经腹部超声检查容易发现异位妊娠的直接证据,因而明显提高了异位妊娠的诊断准确性;阴道超声检查能够在异位妊娠未破裂之前即可做出诊断,使越来越多的异位妊娠的非手术治疗成为可能,在阴道超声引导下经阴道穿刺妊娠部位注射药物,是治疗有胎儿存活的未破裂型输卵管妊娠的新方法。 Transvaginal ultrasonography is more likely to lead to direct evidence of ectopic pregnancy than abdomen ultrasonography, thus significantly improving the diagnostic accuracy of ectopic pregnancy; vaginal ultrasonography can make a diagnosis before ectopic pregnancy has ruptured, The more non-surgical treatment of ectopic pregnancy possible, transvaginal ultrasound guided vaginal puncture pregnancy injection of drugs, is the treatment of fetal survival of unruptured tubal pregnancy a new method.