A member asked:

Coughing up black gunk from only smoking pot. should i be concernd that its happening after 4 years of continuous smoking?

A doctor has provided 1 answer
Dr. Robert Grindstaff answered

Specializes in Addiction Medicine

It depends: cannabis smoke contains a lot of tar and that is what you are probably coughing up. An old rule of thumb is each joint of cannabis smoked is equal to 1 pack of cigarettes. If you stop smoking the stuff you cough up may increase as your lungs try to clear the tar.

Answered 4/19/2015

2.9k views

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