Phlegm, the mucus that comes from your respiratory system (also known as sputum) is released when you have a productive cough. The mucus will usually clear on its own as you get over an infection.

Before you answer that, do you even know what type of cough you have? A productive cough is one that produces mucus (sputum) or phlegm. This kind of cough helps in clearing mucus from the lungs.

A productive cough usually happens when something irritates the lungs or airways, causing inflammation. With inflammation, ...

A "wet" or "moist" cough, also called a productive cough, describes a cough where mucus or phlegm is produced or heard. Treatments for a wet cough can depend on the cause, which may include the ...

Sometimes called productive coughs – these are the ... and your body is trying to shift the mucus by coughing. “Most of these types of coughs will go away within three weeks, but if your ...

cough or a productive cough that brings up mucus or phlegm. It's not clear which genetic and environmental conditions contribute to a cough continuing across a generation, though human genome ...