Pus | Description & Composition | Britannica

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External Websites

• Cleveland Clinic - Pus
• MedicineNet - Is Pus a sign of Infection? What causes it?
• Cell Press - Staphylococcus and the Healing Power of Pus (PDF)
• Verywell Health - Pus and Its Possible Causes
• BMC - Arthritis Research and Therapy - Pus: the Rodney Dangerfield of immunology
• Healthline - Everything You Need to Know About Pus
• International Journal of Clinical and Diagnostic Pathology - Study of bacteria in pus with Antimicrobial Sensitivity Pattern
• National Center for Biotechnology Information - PubMed Central - The mythos of laudable pus along with an explanation for its origin

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pus, thick, opaque, usually yellowish white fluid matter formed in association with inflammation caused by the invasion of the body by infective microorganisms (such as bacteria). It is composed of degenerating white blood cells (leukocytes), tissue debris, and living or dead microorganisms. See inflammation.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Kara Rogers.