A member asked:

I had a grey/blue phlegm come out of my mouth this morning while coughing. don't smoke and don't live around any heavy pollution. fluke or problem? :/

A doctor has provided 1 answer
Dr. M. Hytham Beck answered

Specializes in Surgery

Could be nothing: it could be something you ate and the phlegm mix up with it on the way out either way if persistent could be an indication of infection seek a medical advice

Answered 1/1/2015

3.4k views

Thank

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