Uterine fibroids are the most common benign tumors of female reproductive organs, commonly found in women aged 30 to 50. Traditional treatment is based on surgical resection, and myoma removal surgery may also recur, while removal of the uterus may cause endocrine disorders and affect ovarian function. Under the precise guidance and monitoring of ultrasound, a microwave needle with an external diameter of only 1.9 mm is directly inserted into the fibroid body through abdominal or vaginal puncture, and the fibroid cells are gradually absorbed by the body after dehydration, coagulation and necrosis by the high temperature effect generated by the microwave. This is a minimally invasive treatment method that does not destroy the pelvic physiological structure and does not damage the function of the ovaries. The hospitalization time is short, only local anesthesia is needed, and there is basically no obvious discomfort after the operation. It is suitable for interstitial leiomyoma, subplasma leiomyoma without a clitoris, and submucosal leiomyoma larger than 3 cm.