What is White Blood Cell Count (WBC)?
White Blood Cell Count is measured as part of a complete blood count (cbc) panel. Your immune cell count is normal. Your body has a healthy level of infection-fighting white blood cells.
What does a high White Blood Cell Count mean?
Your white blood cell count is elevated. This often signals an active infection or inflammation. Less commonly, it can relate to stress, steroids, or other medical conditions.
If markedly elevated: Your white blood cell count is critically high. This can indicate a severe infection or, in rare cases, a blood disorder. Please see a doctor promptly.
What does a low White Blood Cell Count mean?
Your white blood cell count is below normal. This may indicate a viral infection, certain medications, or a bone marrow issue. It can mean your immune system is less equipped to fight off infections right now.
If markedly low: Your white blood cell count is critically low (severe leukopenia). Your immune system may be very compromised. Please seek medical attention.
Understand your whole report, not just one number
A single value rarely tells the full story — White Blood Cell Count is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.