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 isn’t just a slimy material in your nose — it actually has a useful purpose. It traps bacteria, other germs, and debris, and prevents them from entering your lungs. In some cases, such as when ...

A mucus plug protects the cervix from bacteria during pregnancy. Losing a mucus plug can indicate the start of labor. Contact your doctor if you lose your mucus plug before 37 weeks. A mucus plug is a ...