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Can fibroids turn into cancer?

Dr. Jeanne Morrison, PhD
Family Practitioner

Fibroids are almost always benign (not cancerous). Rarely (less than one in 1,000), a cancerous fibroid will occur. This is called leiomyosarcoma (leye-oh-meye-oh-sar-KOH-muh). Doctors think that these cancers do not arise from an already-existing fibroid. Having fibroids does not increase the risk of developing a cancerous fibroid. Having fibroids also does not increase a woman's chances of getting other forms of cancer in the uterus.

This information is based on source information from the National Women's Health Information Center.

Kevin W. Windom, MD
OBGYN (Obstetrics & Gynecology)

Fibroids are benign (noncancerous) in 99% of the cases. When I see patients with fibroids, this is a very common question. There is a rare cancer of the uterus called a leiomyosarcoma, but this is thought to arise on its own and not from the transformation of a fibroid. Patients are also very worried that having fibroids can cause them to have an increased risk of other types of female cancers, and this is also untrue.

 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.