White Blood Cells (WBC)
White blood cells are your immune system's working cells. The WBC count is the total of all of them, and it's one of the first numbers a doctor looks at on a complete blood count.
Your reading
This app uses 4.0–11.0 thousand cells per microlitre. A raised count most often means your body is fighting an infection or inflammation, but hard exercise, stress, smoking and steroids can push it up too. A low count can follow a viral illness, and some medications lower it. The breakdown (neutrophils, lymphocytes and so on) usually says more than the total.
What may help
- —Repeating the test once you're well, since a recent cold or a hard workout the day before can shift the number
- —Not smoking, which keeps the count chronically raised
- —Enough sleep and protein, both of which the immune system relies on
When to talk to a doctor
If your count is well outside the range, stays abnormal on a repeat test, or comes with fever, night sweats, weight loss or frequent infections.
Common questions
What is White Blood Cells?
White blood cells are your immune system's working cells. The WBC count is the total of all of them, and it's one of the first numbers a doctor looks at on a complete blood count.
What is a normal White Blood Cells level?
Daygo uses 4.0–11.0 ×10³/µL as the reference range. This app uses 4.0–11.0 thousand cells per microlitre. A raised count most often means your body is fighting an infection or inflammation, but hard exercise, stress, smoking and steroids can push it up too. A low count can follow a viral illness, and some medications lower it. The breakdown (neutrophils, lymphocytes and so on) usually says more than the total.
How can I improve my White Blood Cells?
Repeating the test once you're well, since a recent cold or a hard workout the day before can shift the number. Not smoking, which keeps the count chronically raised. Enough sleep and protein, both of which the immune system relies on.
When should I see a doctor about White Blood Cells?
If your count is well outside the range, stays abnormal on a repeat test, or comes with fever, night sweats, weight loss or frequent infections.
Source: MedlinePlus (NIH): Complete Blood Count. Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.