Can uterine fibroids become cancerous?

Uterine fibroids have a low probability of becoming cancerous and are benign tumors in most cases. The malignant transformation of uterine fibroids into uterine sarcomas is relatively rare and may be related to factors such as genetic mutations and long-term estrogen stimulation.

Uterine fibroids are the most common benign tumors of the female reproductive system and are formed by the proliferation of uterine smooth muscle cells. Clinical data shows that the malignant transformation rate of uterine fibroids is less than 1%, and it is more common in postmenopausal women. Typical uterine fibroids grow slowly, have clear borders, and can be observed with uniform echoes by ultrasound. If the fibroids increase rapidly in a short period of time, do not shrink after menopause, or are accompanied by abnormal vaginal bleeding, you need to be alert to the possibility of malignant transformation. At this time, imaging may show features such as rich blood flow signals and blurred boundaries.

As a malignant lesion, uterine sarcoma has aggressive growth characteristics and may be accompanied by symptoms such as pelvic pain and weight loss. High-risk factors include long-term use of estrogen drugs, history of pelvic radiation, etc. For fibroids that grow abnormally, your doctor may recommend testing serum lactate dehydrogenase levels or performing a needle biopsy to determine their nature. Preventive hysterectomy is not necessary, but regular follow-up is required to observe changes in fibroids.

It is recommended that women of childbearing age undergo gynecological ultrasound examinations every year. If fibroids are found to be more than 5 cm in diameter or have symptoms of increased menstrual flow or compression, timely intervention should be performed. Maintaining a regular schedule and controlling your weight can help regulate estrogen levels, and avoid taking estrogen-containing health products. If symptoms such as abnormal vaginal discharge or lower abdominal pain occur, you must seek medical attention immediately.