结果本组放置宫内节育器者并发症低，效果好。
Results IUD put in this group are lower complication effective.
严格掌握放置宫内节育器的时间、条件和适应证；
Strictly mastering placed intrauterine device time, conditions and indications;
结论预防异位妊娠的发生，治疗盆腔炎是关键，掌握放置宫内节育器的适应证也至关重要。
Conclusion It is a key to treat chronic pelvic inflammation and the indication of intrauterine device for preventing ectopic pregnancy.
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