What is the normal range for lymphocyte percentage?

Jun 29, 2024 Source: Cainiu Health
Disease description:

Hello doctor, during my physical examination, I found that my blood lymphocyte count is abnormally elevated. What is the normal reference range for lymphocyte percentage?

Doctor's answer (1)
Dr. Liu Feng
Lymphocyte percentage, also known as lymphocyte ratio, normally ranges between 20% and 40%. This indicator is obtained through a complete blood count (CBC) test and reflects the proportion of lymphocytes among white blood cells in a given blood volume. Lymphocytes are crucial immune cells that serve as important indicators of overall health. The normal lymphocyte percentage is a key reference for diagnosing infectious diseases, leukemia, immune deficiency disorders, and other related conditions. If the lymphocyte percentage is abnormally high or low, it may indicate potential health issues that require further examination and diagnosis.