A risk factor is something that increases your likelihood of getting a disease or condition.

It is possible to develop uterine fibroids with or without the risk factors listed below. However, the more risk factors you have, the greater your likelihood of developing fibroids. If you have a number of risk factors, ask your doctor what you can do to reduce your risk.

Age

Fibroids may be more common in women in their 30s and 40s.

Ethnic Background

Black women tend to have more and larger fibroids at an earlier age. Asian women may have a lower risk.

Obesity

Women who are overweight or obese are also at a slightly higher risk for fibroids.

Gene Mutation

There may also be a genetic link in the development of fibroids.

Pregnancy

Women who have given birth appear to be at lower risk for uterine fibroids.

Revision Information

  • Leiomyoma. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated May 22, 2012. Accessed August 16, 2012.

  • Risk factors. The National Uterine Fibroids Foundation website. Available at: http://www.nuff.org/health%5Friskfactors.htm. Accessed August 16, 2012.