What is the normal WBC differential lymphocyte percentage range in adults?

The normal white blood cell (WBC) differential lymphocyte percentage range in adults is typically between 20% and 44%. Lymphocytes are a type of white blood cell that play a critical role in the immune system, particularly in the body’s response to infections and in the memory response.

In adults, having a lymphocyte percentage in this range indicates a healthy immune system, as it reflects a balanced production of different types of white blood cells. Values higher or lower than this range could indicate various health concerns, such as infections, immune disorders, or stress responses.

Understanding the lymphocyte percentage is crucial in hematology, as it helps in diagnosing and monitoring various conditions.