A member asked:

Sometimes early in the morning , i had a greenish sputum . it is related to medical problem and why it's happen?

A doctor has provided 1 answer

Greenish phlegm: It doesn't sound to be serious. At least you do not mention other associated problems or symptoms. I suspect it is due to some post-nasal drip and most likely represents some allergy or other upper airway irritation.

Answered 4/24/2014

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