Mucus in stool is relatively common and can be caused by constipation or dehydration. However, in some cases, it points to a more serious underlying condition. When you’re generally healthy, mucus is ...

Mucus is a normal part of the lungs. But smoking and other issues can cause too much mucus to collect there. (Photo Credit: iStock/Getty Images) Your body makes about a liter (approximately 1 quart) ...

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 ...

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 in the nose helps trap germs and other particles to prevent them from entering the body. When mucus, germs, and particles dry out, it forms a booger in the nose. Removing it can be risky. Nose ...

Mucus — less elegantly known as snot — may be annoying when you're sick, or when it feels like you have too much of it, but your body needs it to stay healthy. Technically, mucus is a sticky, ...

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 ...