Clinical study of small doses of urokinase and heparin for unstable angina pectoris shows levels higher than peripheral venous blood. It is also believed that the uterus has endocrine functions as an organ. After uterine artery embolization for reducing uterine fibroids, you can decrease the estrogen levels in the uterus, thereby preventing the regeneration or recurrence of fibroids. This view still needs further confirmation by us [in 6 cases of uterine fibroids treated with uterine artery embolization, short-term observations confirm its effectiveness in reducing menstrual flow, eliminating pain and symptoms of oppression, as verified by B-ultrasound examination]. Treating uterine fibroids through arterial embolization reduces the size of the uterus and shrinks the fibroids; this method is less invasive, causes less pain, and results in shorter hospital stays. Long-term effects require further observation.