What Are Causes for Myelocytes in Blood?

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Leukemia can cause myelocytes in the blood. Cancereducation.com explains that blood containing an abnormally high number of white blood cells is often one of the first indications of leukemia. This occurs when the DNA in the person’s bone marrow mutates, and begins producing an abundance of myelocytes, which are abnormal, cancerous white blood cells. Doctors do not always understand why the bone marrow’s DNA changes, although exposure to radiation and organic solvents may be factors.