A member asked:

I am coughing up black phlegm. i am a non smoker. what can it be?

A doctor has provided 1 answer

U: Probably have an upper respiratory infection. If the color is white most probably is a viral infection, if it yellow or green u may need antibiotics so see a doctor. Same thing if it lasts long time, see your physician.

Answered 6/5/2016

4.9k views

Thank

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