吸宫术后盆腔炎(PID)发生率为3％～20％,沙眼衣原体及奈瑟氏淋球菌均可增加术后感染的危险。为探讨单次静注头孢三嗪在低危妇女预防感染的作用及在高危妇女,合用青霉素及甲硝唑预防感染的效果。选择18岁以上门诊行早孕(≤12周)人工流产术者为研究对象。凡有提示既往PID或性传播 The incidence of pelvic inflammatory disease (PID) after aspiration is 3% -20%. Chlamydia trachomatis and Neisseria gonorrhoeae can increase the risk of postoperative infection. In order to investigate the effect of single intravenous ceftriaxone on preventing infection in low-risk women and to prevent infection in high-risk women, penicillin and metronidazole. Select 18 years of age outpatient early pregnancy (≤ 12 weeks) induced abortion as the research object. Where prompted past PID or sexual transmission