What Causes Clear Mucus in the Back of the Throat?
Mucus is a slippery substance that serves as a protective lubricant in certain parts of the body, such as the sinuses and throat. It’s produced by mucus cells in mucus glands and contains primarily water, mucin, salts, electrolytes and various types of cells, such as epithelial cells. We have mucus in our throat even when we are healthy, but a build-up of clear or colored mucus in the throat is usually a sign the body is responding to an infection or allergy.
