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anorectal abscess

an anorectal abscess is a pocket of pus in the tissue near the end of the rectum (anus). most abscesses are caused by a blocked anal gland that develops an infection.

other possible causes of an anorectal abscess include:

  • infection in an anal fissure.
  • complications of diseases that affect the colon, such as crohn's disease, inflammatory bowel disease, or diverticulitis.
  • sexually transmitted infections.

symptoms of an anorectal abscess include:

  • a painful swelling (mass) around the anus.
  • drainage of pus from the anus.
  • fever.
  • pain in or around the anus.
  • pain when passing stool.

a person should see a doctor if an anorectal abscess is suspected. treatment is needed to prevent worsening of the infection and serious illness.

this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use. learn how we develop our content.

this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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