Health Library

Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Mucus

Mucus is a thick, slippery and usually clear substance that is produced in the lining of body cavities or canals, such as the nose, throat, sinuses, and airways of the lungs. Mucus protects and moistens the lining of body organs, such as the stomach and intestines, and traps dust particles, smoke, bacteria, and other irritants that enter the nose when a person inhales.

Mucus that becomes too thick and sticky can block the airway or digestive system or cause other problems in the body. Thick and sticky mucus is difficult for the body to remove and can increase the risk of infection.

Current as of: September 27, 2023

Author: Ignite Healthwise, LLC Staff

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All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.