Does Green Boogers Mean Infection?

If your immune system kicks into high gear to fight infection, your snot may turn green and become especially thick. The color comes from dead white blood cells and other waste products. But green snot isn't always a reason to run to your doctor. In fact, some sinus infections may be viral, not bacterial.

Are green boogers bad?

One of the first signs of a cold is green or yellow mucus. It's no reason for concern, and in fact, it means your body is working extra hard to fight off infection. White blood cells rush to battle infection, and when they've done their job, they get flushed out of the body along with the virus.

Does Covid make your boogers green?

Mucus (Hint: The color matters) If you're producing mucus, it's likely allergies or cold and flu symptoms, and not a COVID infection. A runny nose and mucus is typically clear in allergy sufferers, Rajani said. Yellow or green-colored mucus likely points to a viral condition, such as the flu.