Frequently Asked Questions > Pediatric Ear-, Nose-, & Throat-Related Questions > What is tonsillitis?

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The term “tonsils” refers to the round tissue in the throat that is located on both right and left side close to the uvula (punching bag hanging in the throat). Tonsils are like a lymph node. They trap bacteria and viruses and mount an attack against them, an immune response. Tonsillitis, infection of the tonsil(s), occurs when bacteria or viruses overwhelm the tonsil and cause redness, swelling and pus formation. 

Last updated on February 13, 2010 by Web Manager