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 ...

Your baby may pass mucus in their stool as part of the natural digestive process. But certain health conditions, such as an allergy or infection, can also cause mucus in their poop. Because babies ...

Clear, bubbly phlegm does not typically indicate a problem. However, coughing up large amounts could indicate an underlying health issue, such as fluid in the lungs. Phlegm, or sputum, is a type of ...

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 ...

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 ...

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 ...