LEUKEMIA RISK FACTORS

Exposure to ionizing radiation increases risk of several types of leukemia (excluding CLL). Medical radiation, such as that used in cancer treatment, is a substantial source of radiation exposure. Leukemia may also occur as a side effect of chemotherapy. Children with Down syndrome and certain other genetic abnormalities are at increased risk of leukemia. Workers in the rubber manufacturing industry also have an increased risk. Recent studies suggest that obesity increases risk of leukemia. Some factors are most closely associated with specific types of leukemia. source: American Cancer Society. Cancer Facts & Figures 2013. Atlanta: American Cancer Society; 2013.