These factors increase your risk for uterine sarcoma.
Having had radiation therapy to your pelvic area before. Radiation therapy can damage the DNA in cells in ways that can lead to cancer later. Some women who have had pelvic radiation develop uterine sarcoma years or decades after receiving this treatment.
Being African American. African-American women are about twice as likely to get uterine sarcoma as are women of European or Asian descent. Doctors do not yet know why the risk is different between these groups of women.
Being older. Risk for uterine sarcoma goes up as you age.