Can an excess of white blood cells cause leukemia?

Jan 21, 2022 Source: Cainiu Health
Disease description:

A few days ago, during a blood test, I discovered that I had an elevated white blood cell count and became worried about developing leukemia. Could you please tell me: Does an elevated white blood cell count cause leukemia?

Doctor's answer (2)
Dr. Li Yi
An elevated white blood cell count does not necessarily indicate leukemia, as leukemia is characterized not only by a marked increase in white blood cells but also by symptoms such as bleeding and infection. Therefore, the elevation may simply result from a common inflammatory condition. A definitive diagnosis of leukemia requires bone marrow examination. Thus, if you are currently experiencing any concerning symptoms, you should visit a hospital for a repeat complete blood count (CBC). If inflammation is severe, symptomatic anti-inflammatory treatment may be administered.