异位妊娠是严重危害妇女的常见病,近10～2 0年来有明显增加的趋势。在美国仍是孕妇死亡的第二大原因,为孕早期死亡的第一大原因[1] 。近2 0年美国异位妊娠率增加达6 1倍。国内冯炜炜等在1970例异位妊娠的分析中10年时间内异位妊娠的发率增加6 4倍(异位妊娠与分娩数之比1 0∶42 Ectopic pregnancy is a serious risk to women’s common disease, the past 10 to 20 years, a significant increase in the trend. The second leading cause of maternal death in the United States is the leading cause of death in early pregnancy [1]. In the recent 20 years, the rate of ectopic pregnancy in the United States has increased by 61 times. In the analysis of 1970 cases of ectopic pregnancy in China, Feng Wei et al. Increased the incidence of ectopic pregnancy by 104 times in 10 years (the ratio of ectopic pregnancy to childbirth was 1:40