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 ...

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 ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Extra mucus in your throat and chest is a common ...

Managing mucus from COPD involves strategies that can help loosen mucus and clear it from your airway, such as staying ...

Sniffles, snorts and blows of runny noses are the hallmarks of cold and flu season -- and that increase in mucus is exactly what bacteria use to mount a coordinated attack on the immune system, ...

If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust.

Mucus production is natural. However, overproduction of mucus in the throat can lead to long-term coughing and throat irritation. Certain conditions and factors can lead to an excess of mucus, such as ...

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 ...

Cystic fibrosis (CF) mucus can clog the lungs and digestive tract. Although there is no cure for CF, medications and therapies can help thin this mucus. Share on Pinterest ArtMarie/Getty Images Cystic ...