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Can a blood test detect leukemia?

Jun 20, 2025 Source: Cainiu Health
Dr. Liu Feng
Introduction
In general, blood tests can help detect leukemia. A complete blood count (CBC) is one of the basic tests used in diagnosing leukemia. Blood tests can reveal abnormal numbers and morphology of white blood cells, such as abnormally high or low total white blood cell counts, or the presence of immature cells, which may be early signs of leukemia.

Generally, blood tests can help detect leukemia. If symptoms suggestive of leukemia occur, it is essential to seek medical attention promptly for a comprehensive evaluation. Detailed analysis is as follows:

A complete blood count (CBC) is one of the basic tests used in diagnosing leukemia. Blood tests can reveal abnormal numbers and morphology of white blood cells, such as abnormally high or low total white blood cell counts or the presence of immature cells, which could be early signs of leukemia. Additionally, the levels of hemoglobin and platelets may also be affected.

However, blood test results alone cannot confirm a diagnosis of leukemia. Further specialized hematological tests, such as bone marrow aspiration, cytochemical staining, and flow cytometry, are required for a more accurate diagnosis. It is recommended to undergo targeted examinations under the guidance of a qualified physician. If there is suspicion of leukemia, a comprehensive hematological evaluation should be conducted promptly to establish a clear diagnosis.

In daily life, maintaining healthy lifestyle habits, such as balanced nutrition, avoiding late nights and excessive fatigue, can support overall health and recovery.

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