A member asked:

Does phlegm/mucus from the lungs come up on its own? or does it need to be coughed out?

A doctor has provided 1 answer
Dr. Silviu Pasniciuc answered

Specializes in Internal Medicine

Cough: Is a reflex by which airway secretions are mobilized and airways are cleared. Expectorated material does contain saliva otherwise that does not need to be coughed up.

Answered 11/18/2019

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