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Abscess

Abscess Overview

An abscess is a localized collection of pus that generally develops in response to infection. An abscess is typically painful, and it appears as a swollen area that is warm to the touch. The skin surrounding an abscess typically appears pink or red.

Abscesses can develop in many parts of the body, but they usually involve the skin surface. Common sites affected include the armpits, groin, rectal area (perirectal abscess), the external vaginal area (Bartholin abscess), and along the tailbone (pilonidal abscess). Abscesses can also affect the brain, kidneys, liver (hepatic abscess), lungs, teeth (dental abscess), and tonsils (peritonsillar abscess). Inflammation surrounding hair follicles can lead to the formation of abscesses. Skin abscesses are often referred to as boils.

Unlike other infections, antibiotics alone will not cure an abscess. In general, abscesses must open and drain to improve. Although sometimes an abscess will open and drain spontaneously, it generally needs to be opened and drained (incision and drainage) by a health care provider.



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Abscess

Anal Abscess Overview

A perirectal abscess is a collection of pus in the deep tissues surrounding the anus. By contrast, a perianal abscess is a shallower collection of pus under the skin surrounding the anus. Both types of abscesses need immediate attention. A delay in treatment may cause serious worsening of the condition and unnecessary complications.

Anal Abscess Causes

Perirectal and perianal abscesses are thought to develop from the glands surrounding the anus. These glands may plug up, leading to infection. When they fill with pus, they may burst inward, releasing their infected contents into the spaces around the rectum and anus. This pus causes an abscess, or pus collection, in the spaces surrounding the rectum or anus. The anal abscess may enlarge, causing pain, fever, and difficulty with bowel movements.

Certain people are more likely to develop perirectal and perianal abscesses, including those with the following medic...

Read the Anal Abscess article »



Read What Your Physician is Reading on eMedicine

Peritonsillar Abscess »

Peritonsillar abscess (PTA) is a common infection of the head and neck region.

Read More on eMedicine »

Medical Dictionary