The FDA warns that doctors should stop using a procedure called power morcellation to remove fibroids because it may spread cancerous tissue, The New York Times reports. Morecellation involves a rapidly spinning device which can cut up fibroid tissue that can then be removed through small incisions in a minimally invasive surgery. However, fibroids often hide very harmful sarcomas and using morcellation could cut up the sarcomas and spread them through the body. The FDA will not ban the technique, however, because it still may be a good option for some women, adding that sarcomas are most common in older women. Other ways to deal with fibroids include drug therapy, techniques that shrink fibroids by blocking a uterine artery, and high-intensity focused ultrasound.