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What causes peritonsillar abscess?

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A peritonsillar abscess is most often a complication of tonsillitis. The bacteria involved are similar to those that cause strep throat.

Streptococcal bacteria most commonly cause an infection in the soft tissue around the tonsils (usually just on one side). The tissue is then invaded by anaerobes (bacteria that can live without oxygen), which enter through nearby glands.

From: Peritonsillar Abscess WebMD Medical Reference

SOURCES:

MedlinePlus: "Peritonsillar Abscess."

FamilyDoctor.org: "Peritonsillar Abscess."

Harvard Health Publishing: "Peritonsillar Abscess."

Reviewed by Michael Friedman on August 23, 2018

SOURCES:

MedlinePlus: "Peritonsillar Abscess."

FamilyDoctor.org: "Peritonsillar Abscess."

Harvard Health Publishing: "Peritonsillar Abscess."

Reviewed by Michael Friedman on August 23, 2018

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What are risk factors for peritonsillar abscess?

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