子宫肌瘤是育龄妇女最常见的良性肿瘤。它的病因和发病机制尚不清楚。传统认为雌性激素是子宫肌瘤发病的重要因素。近年来研究发现 ,孕激素在子宫肌瘤的发病中起重要作用。我们应用孕激素拮抗剂米非司酮治疗子宫肌瘤 ,观察其疗效。1　资料与方法1 .1临床资料　自愿要求用米非司 Uterine fibroids are the most common benign tumors of women of childbearing age. Its etiology and pathogenesis is not clear. The traditional view that estrogen is an important factor in the pathogenesis of uterine fibroids. In recent years, studies have found that progesterone plays an important role in the pathogenesis of uterine fibroids. We use the progestin antagonist mifepristone treatment of uterine fibroids, to observe its efficacy. 1 Materials and Methods 1.1 clinical data voluntary use of mifefizen