Is leukocytosis the same as chronic myeloid leukemia?

Nov 14, 2022 Source: Cainiu Health
Disease description:

My sister was found to have elevated white blood cells during a checkup, and she has recently developed a fever. I'm worried this might be caused by chronic myeloid leukemia. Does increased white blood cell count necessarily mean chronic myeloid leukemia?

Doctor's answer (1)
Dr. Zhang Heyang
Leukocytosis is not necessarily chronic myeloid leukemia; it could be caused by bacterial inflammatory infection or myeloproliferative disorders. If white blood cell counts increase tenfold, it may indicate a hematological disease. Patients are advised to promptly visit a hematology specialist for evaluation. After a definitive diagnosis is established through appropriate tests, targeted treatment should be initiated.