Lymphocytes %
Lymphocytes as a percentage of total white blood cells. Lymphocytes orchestrate the adaptive immune response; their proportion shifts characteristically during viral infection, chronic stress, and immune activation.
Why it matters: Used as an input to the Levine PhenoAge biological-age model. Percentage distribution can reveal immune shifts that absolute counts miss — e.g., relative lymphocytosis during a viral illness.
May increase with:
May decrease with:
What is Lymphocytes %?
Lymphocytes as a percentage of total white blood cells. Lymphocytes orchestrate the adaptive immune response; their proportion shifts characteristically during viral infection, chronic stress, and immune activation.
What might a high or low Lymphocytes % mean?
Used as an input to the Levine PhenoAge biological-age model. Percentage distribution can reveal immune shifts that absolute counts miss — e.g., relative lymphocytosis during a viral illness.
What is the typical reference range for Lymphocytes %?
The general-population reference range shown here is 18 – 42 %. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.
What can affect Lymphocytes %?
It may be higher with: Viral infection, Some chronic bacterial infections (tuberculosis, pertussis), Certain lymphoproliferative disorders. It may be lower with: Acute bacterial infection, Corticosteroids, Chemotherapy, HIV progression, Stress.
Track your Lymphocytes % over time
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