Understanding Lab Tests for Chronic Myelogenous Leukemia
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Chronic Myelogenous Leukemia (CML) is a type of blood cancer that affects the bone marrow and blood cells. Blood tests play a crucial role in diagnosing CML by detecting abnormal cell counts and identifying specific cellular changes that indicate this condition.
Recommended Test
Complete Blood Count / CBC (includes Differential and Platelets)
This comprehensive blood test is fundamental in diagnosing CML as it can detect increased levels of myelocytes, which are immature white blood cells. An abnormal increase in myelocytes is a key indicator of Chronic Myelogenous Leukemia. The CBC with differential also provides detailed information about all blood cell types, helping to identify the characteristic blood cell abnormalities associated with this blood and bone marrow cancer.
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How Blood Tests Help Diagnose CML
CML is characterized by the overproduction of abnormal white blood cells, particularly myelocytes. Blood tests can reveal these cellular abnormalities, elevated white blood cell counts, and other blood cell changes that are hallmarks of this leukemia. Early detection through blood testing is essential for timely treatment and monitoring disease progression.
What to Expect from CML Blood Testing
The CBC test will evaluate your white blood cells, red blood cells, and platelets. In CML, you may see elevated white blood cell counts, increased numbers of immature cells like myelocytes, and potentially changes in other blood cell lines. Additional specialized testing may be recommended based on initial blood test results to confirm the diagnosis and determine the specific characteristics of the leukemia.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment. CML diagnosis typically requires additional specialized tests beyond basic blood work for complete confirmation.
