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Definition of leukemia: Cancer that starts in blood-forming tissue, such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the bloodstream. 

Estimated new cases and deaths from leukemia in the United States in 2014:

  • New cases: 52,380
  • Deaths: 24,090

See the online booklet What You Need To Know About™ Leukemia to learn about leukemia symptoms, diagnosis, treatment, and questions to ask the doctor.

Leukemia Statistics | Did You Know?

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Key statistics about leukemia from the SEER Cancer Statistics Review, 1975-2010.


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