Uterine fibroids can undergo malignant transformation, albeit at a low rate of 0.5%-1%. When malignancy occurs, the fibroids can grow quickly over a short period and are accompanied by pain in the lower abdomen, heavy menstrual bleeding, prolonged menstrual periods, and irregular vaginal bleeding. Additionally, patients can feel a mass in the lower abdomen, which can be painful and present symptoms of heaviness. Therefore, if you have uterine fibroids, it is essential to have regular follow-ups, typically once every six months to a year. If it is found that the fibroids are growing rapidly, immediate surgical intervention is necessary to prevent the malignant transformation of the fibroids.