Can someone please explain if WBC (TLC) count rises only in bacterial infections, or can it also increase in viral infections?

Answered by 1 Apollo Doctors

Dr Shaik Kalam

General Practitioner

MD (Physician)
3+ Yrs

Consult Now

Yes, WBC (TLC) can rise in both viral and bacterial infections. In viral infections, lymphocytes usually increase. In bacterial infections, neutrophils rise. CBC helps distinguish the likely cause.

Dr. Shaik Suggests...

Take a CBC Test (Complete Blood Count) Test

Book CBC Test (Complete Blood Count) Test

Answered 15/09/2025

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