有关宫内节育器IUD并发症的报导甚多,其中异常子宫出血尤其是月经过多往往是导致IUD取除的常见原因。以往认为这类月经异常可能和下列因素有关:①IUD使受压局部坏死,形成微小溃疡;②未和IUD接触部位的子宫内膜血管充血,血小板栓塞及微量出血;③子宫内膜和浅肌层纤维蛋白溶酶无激活剂(Plasminogcn activator)。量增多。复习有关IUD的主要文献,尚未见到由于弥漫性子宫肌层肥厚引起月经过多的报导。问题在于 IUD complications related to IUD reported a lot, including abnormal uterine bleeding, especially menorrhagia is often the most common cause of IUD removal. In the past that such menstrual abnormalities may be related to the following factors: ① IUD local compression of necrosis, the formation of small ulcers; ② not in contact with the IUD endometrial vascular congestion, platelet embolization and micro-bleeding; ③ endometrial and superficial muscle Plasminogcn activator. Increased volume. Review of the main literature on IUD, have not yet seen due to diffuse myometrial hypertrophy caused by menorrhagia reports. The problem is