Absolute Lymphocytes

Measured in 10^3/uL

The actual number of lymphocytes — the immune cells central to fighting viruses and building longer-term immunity — which commonly shifts after an illness.

What it is

Lymphocytes are the white blood cells behind your body's more targeted, longer-term immune responses, including to viral infections; the absolute count is the real number of them per volume of blood, rather than their share of total WBCs. This is normally reviewed with the rest of the differential and your total WBC count, because a shift in one cell type changes how the others look as percentages. Lymphocyte counts commonly move in the weeks around and after an infection, with stress, and with certain medications, and they naturally vary by age, so a single reading slightly off the reference range is common and the trend matters more than one number.

Typical range

  • Adults1.0–4.0 10^3/uL

Source · StatPearls (NCBI Bookshelf NBK604207) (2024)

Reference ranges vary between laboratories, and what is normal for you depends on your own history. Your own lab’s range is the one printed on your report.

Worth asking your clinician

  • Is my absolute lymphocyte count different from my past results, or typical for me?
  • Could a recent infection or medication account for this value?
  • Would rechecking this after some time has passed give a clearer picture?