Basophils (Absolute)
This is the actual number of basophils per unit of blood, rather than their share of white cells. Basophils are immune cells that release histamine and take part in allergic and inflammatory responses.
The absolute count is usually more reliable than the percentage because it isn't affected by shifts in other white cell types. It helps your clinician gauge whether basophils are genuinely increased or just appear so on a percentage basis. It is interpreted as part of the complete blood count and differential.
A genuinely elevated absolute basophil count can be seen with allergic and inflammatory conditions and, less often, with certain bone marrow disorders. A persistently raised count is more meaningful than a one-time reading. Your clinician will consider your symptoms, history, and the rest of your blood work before interpreting it.
A low absolute basophil count is common and typically not a concern, because basophils are the least numerous white cells to begin with.
Reference ranges differ between laboratories, so compare against the range printed on your own report and raise any flagged value with your clinician.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.