Uterine fibroids are common, noncancerous growths that develop in the uterus. Many women wonder, “How often do fibroids become cancerous?” Current evidence indicates that fibroids are almost always benign and do not directly increase the risk of uterine, ovarian, or breast cancer. However, unusual symptoms such as rapid growth, postmenopausal bleeding, severe pelvic pain, or abnormal imaging findings should be evaluated by a healthcare professional. Learn more about fibroids and cancer risk from USA Fibroid Centers.