White blood cells are your immune system's working parts. The count, and the mix of cell types, shows how your body is responding to infection, allergy and stress.
White blood cell count (WBC). The total number of white cells in the blood, the cells that fight infection and help control inflammation.
Differential: neutrophils, lymphocytes, monocytes, eosinophils, basophils. Part of the same full blood count. Each type has a different job, so the pattern often says more than the total.
The white cell count moves with what your immune system is doing. Neutrophils often rise with bacterial infection, physical stress and hard exercise. Lymphocytes often shift with viral infections. Eosinophils can rise with allergies, asthma and some gut parasites. Reading the types together helps show what kind of response is going on.
A count can also be naturally different from the textbook range. Some people of African or Middle Eastern ancestry have a lower neutrophil count that is normal for them and carries no extra risk of infection. Smoking, pregnancy and steroid medicines can raise the count. A single result is a snapshot, so it is read with your symptoms, CRP and ESR, and compared over time.
White cells are reported as cells x10^9 per litre. A total of roughly 4.0-11.0 x10^9/L is a common adult range, though it varies by lab. Each cell type has its own range.
A high count is most often linked with infection, inflammation, smoking, stress or recent hard exercise. Raised eosinophils point more towards allergy. A very high count, or one that stays high without a clear reason, should be followed up with your own doctor.
A low count can follow a viral infection and is often rechecked after a few weeks. It can also be linked with some medicines, low B12 or folate, autoimmune conditions or a naturally low neutrophil count. A very low count is a reason to speak to your own doctor promptly.
Reference ranges differ between labs, and a single result is a snapshot. Your consultant reads every value against your history and the rest of the screen, not in isolation.
This test is part of Baseline’s full blood screen: 122 parameters across ten systems from one draw, for AED 850, with results in 48 hours. It is not sold as a single test, because the result means more next to everything else.
Ranges are the lab’s own. Your consultant goes through what they mean with you.
Your results arrive in the Baseline app, every marker against the lab’s own range, checked by your consultant before you see them. The values above are an example.
This page is general information, not a diagnosis. If you feel unwell, or your symptoms are new or getting worse, speak to a doctor.
Reading is not a diagnosis. A consultation goes through your history with you and tells you plainly whether a program fits, including when it does not. AED 350, credited in full against your first order.