子宫肌瘤是妇科临床最常见的良性肿瘤，其发生发展的机制目前尚未完全明了，但其生长发展与雌激素、孕激素有密切关系，近年有文献报告用孕激素拮抗剂米非司酮（Ru486）治疗子宫肌瘤取得一定的疗效．我院试用小剂量Ru486治疗肌瘤也获得明显的近期效果，现初步小结如下．1资料与 Uterine fibroids is the most common benign tumor in gynecological clinic. The mechanism of its occurrence and development is not completely understood at present, but its growth and development are closely related to estrogen and progesterone. In recent years, there are reports of the use of progestin antagonist mifepristone Ru486) treatment of uterine fibroids to achieve a certain effect. Low-dose Ru486 trial our hospital treatment of fibroids have also been significantly effective in the near future, are summarized as follows. 1 information and