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人工流产是避孕失败后不得已的补救措施。由于避孕方法并非适合于所有人群或使用不当,常致避孕失败。全球每天发生约91万例妊娠中,意外占50%,非意愿占25%。美国每年约有40万青少年人工流产[1];中国每年约有1000万人次人工流产[2];Singh认为全世界只有1/4妇女没有接受过合法流产
Induced abortion is a last resort remedy after contraception fails. Contraception often fails because contraceptive methods are not suitable for all people or are not used properly. About 910,000 pregnancies occur daily in the world, accounting for 50% of accidents and 25% of those who do not. Approximately 400,000 adolescent induced abortions occur each year in the United States [1]; in China, about 10 million induced abortions occur each year [2]; Singh states that only one-quarter of women in the world have not had a legal abortion