A member asked:

Does yellow snot mean bacterial or viral?

3 doctors weighed in across 2 answers
Dr. Joel Gallant answered

Specializes in Infectious Disease

Irrelevant: The color of your snot tells you nothing. People who have colds often have yellow snot, but the cold is still caused by a virus.

Answered 7/23/2014

4.8k views

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No: There is a myth that snot turns yellow in a cold because of bacterial superinfection. It is actually necrosis from the viral infection.

Answered 1/19/2018

416 views

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