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Coughing up yellow and green mucus after waking up?

2 doctors weighed in
Dr. Jeffrey Simons
Internal Medicine - Pulmonology
1 doctor agrees

In brief: Probable Bronchitis

Yellow or green sputum in the morning may indicate a bronchitis.
When sputum is in a dark moist space for several hours, it becomes more viscid and changes color from a clear or white to yellow and a green. If one coughs up this type of sputum continuous during the day, it probably means that an active infection is going on and it would be wise to ask a physician to examine you

In brief: Probable Bronchitis

Yellow or green sputum in the morning may indicate a bronchitis.
When sputum is in a dark moist space for several hours, it becomes more viscid and changes color from a clear or white to yellow and a green. If one coughs up this type of sputum continuous during the day, it probably means that an active infection is going on and it would be wise to ask a physician to examine you
Dr. Jeffrey Simons
Dr. Jeffrey Simons
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