If you’ve ever fought a cold or infection in the past, chances are you’ve had the not-so-pleasant experience of coughing up green phlegm. Along with a runny nose and sore throat, green phlegm ...

Phlegm—also called sputum—is a slimy, slippery substance that can be found in your throat and lungs. It is a little bit thicker than the mucus that is in your nose and sinuses. Usually phlegm ...

When that happens, it’s called bronchitis. Symptoms of this condition include a nagging cough, and you might cough up mucus that’s yellow or green. There are two types of bronchitis ...