2 place or take out an intrauterine device ;

二是放置或者取出宫内节育器的；

Regularly monitor intrauterine device position.

定期监测宫内节育器位置。

Intrauterine device (IUD); Perimenopausal period; Retention; Safety.

宫内节育器；围绝经期；滞留；安全性。

There is a deeper cognition of intrauterine device bleeding in this study.

从而对宫环出血的研究有进一步的认识。

Strictly mastering placed intrauterine device time, conditions and indications;

严格掌握放置宫内节育器的时间、条件和适应证；