What causes chronic lymphocytic leukemia (CLL)?

There is no exact cause for CLL, however, it is known that white blood cells, called lymphocytes, somehow develop changes (mutations) in their DNA, which causes the abnormal growth of immature lymphocytes. Normally these lymphocytes aid in fighting off infection(s) in the body, but because lymphocytes do not mature, their role in defending the body is ineffective. These mutated cells eventually grow in abundance and leave little or no room for healthy (red or white) blood cells and platelets. The overproduction causes many complications and interferes with normal blood cell production and function.
chronic lymphocytic leukemia causes

  • "Chronic Lymphocytic Leukemia." Mayo Clinic. Mayo Foundation for Medical Education and Research, 19 Apr. 2016. Web. 30 June 2017.
  • "Chronic Lymphocytic Leukemia Symptoms & Treatment." Cleveland Clinic. Cleveland Clinic, 29 Oct. 2009. Web. 30 June 2017.



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