When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. We all produce mucus, even when healthy. Mucus is a ...

Mucus consists mainly of water and a gel-forming molecule called mucin. The body uses mucus to protect tissues, remove particles, and prevent infections. Mucus is essential for the functioning of many ...

It is not unusual to cough up phlegm with a common cold. However, it can also indicate a different, sometimes serious, underlying condition such as stomach acid reflux, lung disease, or heart disease.

Phlegm is naturally clear. So, if your phlegm is a different color, such as yellow or green, you may have a viral or bacterial infection. Brown, red, or black phlegm may be a sign of a more serious ...

Not all gross: mucus is vital for healthy airways. William Brawley/Flickr, CC BY We tend to notice mucus only when it’s abnormal and the sticky fluid is expelled from orifices. But actually it’s ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." There’s no way around it: Coughing up phlegm feels gross, especially if you’re already dealing with other ...

Certain remedies, such as staying hydrated, using a humidifier, and taking over-the-counter decongestants, can all help ease excess phlegm in your throat or chest. Mucus is sticky, so it can trap dust ...

When you’re sick you’ll often produce more phlegm, and might notice it’s thicker or a different colour: white, green, yellow or maybe even brown. What can this phlegm – also called mucus, snot, sputum ...