Phlegm color can indicate underlying health issues. Clear or white may signal allergies or viral infections. Yellow or green ...
But not all mucus is the same. Different colors can mean fungal infection or other serious health issues. And mucus from allergies is different from that of the common cold. Pediatrician Cindy Gellner ...
Study objectives: To stratify COPD patients presenting with an acute exacerbation on the basis of sputum color and to relate this to the isolation and viable numbers of bacteria recovered on culture.
Phlegm color can indicate underlying health issues. Clear or white may signal allergies or viral infections. Yellow or green suggests bacterial infection, needing prompt antibiotic treatment.