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 ...

Please provide your email address to receive an email when new articles are posted on . Mucus scores included 6 for the nonbiologic group and 3 for the biologic group. Mucus scores also included 5 for ...

Having black or dark phlegm or mucus can be distressing. It can often signal a serious disease or exposure to unhealthy pollutants. The presence of mucus is not a sign of disease and shouldn’t pose ...

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 ...

Mucus is a thin, slippery fluid that lines the nose, throat, and other passages to trap dust and germs. Phlegm is a thicker type of mucus produced in the lungs to catch and remove harmful particles ...

There’s no way around it: Coughing up phlegm feels gross, especially if you’re already dealing with other unpleasant symptoms from a cold or other respiratory infection. The good news is that some ...

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 ...

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 ...