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What is chronic myeloid leukaemia?

  • Chronic myeloid leukaemia (CML), also called chronic myelogenous leukaemia, is a rare type of cancer that affects the bone marrow and white blood cells.
  • It can be diagnosed at any age but is more common in people aged 65 or over.
  • CML develops slowly, over several years, and is usually treatable.

Important: Get your symptoms checked

It's important to get any symptoms of CML checked as soon as possible.

Page last reviewed: 27 September 2023
Next review due: 27 September 2026