Leukemia: Risk Factors

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  • Certain chemotherapies used for lymphoma or other types of cancer
  • Down syndrome and some other genetic diseases
  • Chronic exposure to benzene (such as in the workplace) that exceeds federally approved safety limits
  • Radiation therapy used to treat other types of cancer
  • Tobacco smoke

Leukemia is not contagious, you will not be able to catch it from someone.