紧急避孕

紧急避孕（），指无保护措施的性行為后，或避孕失败后几小时或几日内，妇女防止非意愿性妊娠的发生，而采取的补救避孕法，其中包括放置宫内节育器和口服紧急避孕药。

定义

适应症 
 避孕失败，包括安全套破裂、滑脱；未能做到体外排精；错误计算安全期；漏服短效避孕药；宫内节育器滑脱。
 未使用任何避孕方法進行性行為。
 遭到強制性交。

方法 
 宫内节育器：在无保护性生活后5日（120小时）之内放入，有效率达95%以上。
 紧急避孕药种类及用法：主要有雌孕激素复方制剂，单孕激素制剂及抗孕激素制剂3大类。

参考书目

外部連結
 The Emergency Contraception Website (not-2-late.com) by the Office of Population Research at Princeton University and the Association of Reproductive Health Professionals. Information for women who need emergency contraception now.
 Planned Parenthood web site.  Educational web site with information for women who need emergency contraception now.
 International Consortium for Emergency Contraception  Policy-oriented web site directed at professionals.
 Emergency contraception by the Adolescent Medicine Committee, Canadian Pediatric Society (CPS), Paediatrics and Child Health ACSA-CAAH
 Use of Emergency Contraception Among Women Aged 15-44, United States, 2006-2010 National Center for Health Statistics

激素避孕
宫内避孕