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本文对宫内节育器(IUD)应用者月经失血量(MBL)进行了研究。测定月经血量最普通的方法为碱性正铁血红蛋白技术,首先由Hallberg和Nilsson叙述,并由Shaw进行改进。在西方多数国家,未避孕的妇女,月经血量平均正常值是32ml。在中国研究报告健康妇女MBL的正常值在45～57ml之间,而在日本是50～56ml。各种类型的不正常出血可以发生在带IUD者,即:(a)月经失血量的改变;(b)月经间期失血;(c)月经持续时间延长。在用李普斯曲IUD和其他不含药的IUD,在放置后24个月MBL平均
This article studies the use of intrauterine devices (IUD) for menstrual blood loss (MBL). The most common method of measuring menstrual blood is alkaline methemoglobin, first described by Hallberg and Nilsson and refined by Shaw. In most Western countries, non-contraceptive women, the average normal menstrual blood volume is 32ml. In Chinese studies, the normal values for MBL in healthy women range from 45 to 57 ml, while in Japan it is 50 to 56 ml. Various types of abnormal bleeding can occur in patients with IUD, namely: (a) changes in menstrual blood loss; (b) menstrual bleeding; (c) prolonged menstruation. After using Lupis IUD and other drug-free IUDs, MBL was averaged 24 months after placement