1 According to doctors, coughing up yellow or green phlegm usually is a sign that your body is fighting off some sort of infection. “A thick mucopurulent yellowish-greenish color is indicative of ...

and 59 noted a change in their sputum color. All patients with purulent sputum and 86.5% of the mucoid group complained of at least two of these symptoms. There was no difference between the two ...

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.

The mucus in your nose serves many functions. Its colour can tell you and your doctor a lot about what’s going on in your body. While this is not enough to diagnose anything outright ...

Medically reviewed by Jane Kim, MDIf you're wondering how to get rid of phlegm in your chest and throat, you can try drinking ...