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Dr. Andrew Rynne

Family Physician

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What does grey colored phlegm during cough indicate?

Answered by
Dr. Matt Wachsman

Addiction Medicine Specialist

Practicing since :1985

Answered : 3042 Questions

Posted on Thu, 10 Sep 2015 in Smoking and Alcohol Addiction
Question: Hi doc I'm 21 I started smoking at 18 and I have quit smoking now but when I try to cough greysh phlegm comes out Plz tell me what that means
Answered by Dr. Matt Wachsman 15 minutes later
Brief Answer:
something that needs treatment.

Detailed Answer:
As the lungs heal up they get rid of accumulated gunk from cigarettes but that looks like the bottom of an ashtray (brown). Grey is a sign of infection and needs treatment fairly soon. The lungs do not fully heal that soon after stopping cigarettes and remain susceptible to infection. Infections often start without fever.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

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