Blood health

Inflammation

White Blood Cells (WBC, Leukocytes)

What it measures

Complete Blood Count Test (CBC)

Clinical significance

White blood cells are part of the body's immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells). Your white blood cells account for only about 1% of your blood, but their impact is big.

The normal number of WBCs in the blood is 4,500 to 11,000 WBCs per microliter (4.5 to 11.0 × 109/L). Normal value ranges may vary slightly among different labs.

White blood cells are produced by your bone marrow to help your body fight infection. With a low white blood cell count and, in particular, a low level of neutrophils, you're at higher risk of developing an infection. And if you develop an infection when you have a low white blood cell count, your body can't protect itself. When you have a low white blood cell count, your immune system isn't working as well as it should.

Vitamin C is thought to increase the production of white blood cells, which are key to fighting infections. This is why most people turn straight to vitamin C after they've caught a cold. That's because it helps build up your immune system.

What happens if white blood cells are high?

A high white blood cell count may indicate that the immune system is working to destroy an infection. It may also be a sign of physical or emotional stress.

What our users say

Real ratings and reviews from the Healsens app on the App Store and Google Play.

5.0 · 6 ratings · App Store

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4.5 · 17 ratings · Google Play

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My journey back to health with Healsens. Thank you!!

That's when I turned to a nutritionist and ordered a blood test through Healsens. … Four months later, I retested. My biological age dropped to 24—nearly a decade younger than my real age.

Anna A. · App Store

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Useful app to track analytics and 2nd opinion

It helps me track main parameters, understanding what do they mean and correlations, and make critical analysis to make preventative changes. Hope too see new fichas soon!

Alexey_E. · App Store

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Everything is great! Excellent app! It's very convenient for storing all your test results! The only thing I wish was that you could record blood pressure readings for both arms, as this is sometimes important for blood pressure monitoring.

Veronica K. · Google Play

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A useful app. It motivates me to lead a healthy lifestyle and monitor my diet. After the test results, I decided to change my diet – I cut out flour and chocolate. I lost 2 kg in about a week. We'll see how the test results look over time.

Arthur A. · Google Play

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