Cough Mucus Color Chart
Cough Mucus Color Chart. Continue reading to find out the function of mucus and what your mucus can tell about your health. What does green, yellow, or brown phlegm mean? Over time, you may start coughing up yellow and green phlegm. Coughing up phlegm is a common symptom of bronchitis and other upper respiratory infections.

Mucus buildup in your throat is more than a little annoying.
Be aware of the causes so you can avoid triggers and keep throat mucus under control. Phlegm is a type of mucus that comes from the lungs and nearby lower respiratory tract airways. The color comes from the enzymes in white blood cells. The body uses mucus to trap germs and contaminants.
