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在过去20年里,宫内节育器已受到广泛的应用,并为了提高避孕效果,减少副作用,作了不少改进,有的缠以金属丝;有的加入甾体药物,可定时释放,因此产生了所谓第二代宫内节育器。但这些工具仍有经血量损耗过多和疼痛的缺点。本文作者考虑到经血量耗损过多对妇女的健康来说,有一定的重要性,尤其对营养较差者,每能导致产生贫血。为此对使用8种宫内节育器的妇女进行了应用前、后(1、3、6个月)的经血量耗损(MBL)以及血红蛋白(Hb)量变化的比较测定。将8种不同类型的宫内节育器应用到78名受试妇女中,其年龄及孕次相同。受试者可随意选择试
In the past 20 years, IUDs have been widely used, and in order to improve the contraceptive effect and reduce side effects, made a lot of improvements, some wrapped around the wire; some steroid drugs, can be released regularly, so Produced the so-called second-generation IUD. However, these tools still have the drawback of excessive blood loss and pain. The authors consider that excessive consumption of menstrual blood is of some importance to the health of women, and especially to those with poor nutrition, each of which causes anemia. To this end, women with eight intrauterine devices were compared before and after application (1,3,6 months) of blood loss (MBL) and hemoglobin (Hb) changes in comparison. Eight different types of IUDs were applied to 78 women at the same age and parity. Subjects are free to choose to test