What Are the Possible Causes of a Cough That Brings Up a Black Substance?

Question by Sky: What are the possible causes of a cough that brings up a black substance?
A good friend has been sick for about a week now. He is a seventeen year old male. His symptoms are: very sore throat, fever, cough, and then this morning (of October 3rd) a new symptom of coughing up a black substance has resulted. The only excuse I’ve found was through www.webmd.com and it implied cocaine abuse. I am absolutely positive he does not do cocaine. Help!

Best answer:

Answer by rubiorojizo
pollution?

old blood in lungs like dried clots

Answer by K. Elizabeth
He should most DEFIANTLY go to the doctors. That Is NOT good!

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