A 29-year-old male asked:
why do i have phlegm when i wake up in the morning?
1 doctor answer
A Verified Doctor answered
A US doctor answered Learn more
Phlegm builds up: at night from your nose and chest. Sleep may not allow you to cough and clear phlegm out normally compared to when you're awake. Your family doctor and Healthtap can suggest ways you can treat this condition.
Answered on Nov 27, 2017
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