"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s never any fun feeling under the weather, but when a common cold is paired with excess phlegm, it ...

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 is ...

The sticky, slimy goo plays an essential role in fighting off infections, shaping the gut microbiome and more. Credit...Sisi Kim Supported by By Nina Agrawal To many people, mucus is nothing more than ...

Although mucus and phlegm are related terms, they don't mean exactly the same thing. Karl Tapales via Getty Images Most people are all too familiar with the icky, uncomfortable feeling of having mucus ...

Coughing is a reflex that typically serves as a defense mechanism to clear the airways of irritants or secretions. (Fun fact: Coughs can propel air and particles out of the lungs and throat at speeds ...

Healthy phlegm is usually clear and runny, but many different health conditions can change the consistency or color. Phlegm, also called sputum, is mucus produced by your lungs that helps protect your ...

Coughing up white mucus can mean you have congestion with a respiratory infection such as bronchitis, or it can be a symptom of long-term health issues like chronic obstructive pulmonary disease (COPD ...

Your body produces mucus naturally to protect your respiratory system, and under normal circumstances, this protective fluid remains clear and relatively thin. However, when mucus suddenly changes to ...