Abscess

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An abscess is a collection of pus contained in a small area walled off from the rest of the body by inflammatory cells and decaying tissues. Pus is a thick white to yellowish fluid, composed primarily of dead white bloods cells, that forms as a result of infection. Abscesses actually represent an attempt on the part of tissues at a local site to insulate the body from invading organism. They can occur just about anywhere in the body, from the brain to the abdomen to the area around the toenails, but they are most common in the skin.

The infecting organisms responsible for the formation of abscesses vary. Staphylococcus bacteria are prevalent in skin abscesses, but a multitude of other organisms, including viruses, bacteria, fungi, amoebas, and worms, can be involved as well, depending on the site of the abscess. In some cases, the causes are unknown.

Most abscesses causes local pain and tenderness. If they are close enough to the surface of the skin, there is likely to be redness and swelling. Deeper abscesses can cause fever, fatigue, and loss of appetite. If an internal organ is involved, there can be symptoms resulting from disruptions in the functioning of that organ.

Even a small, localized skin abscess should be treated rather than being left to resolve itself on its own. Otherwise, it may tax the body's immune mechanisms, and infection may spread. Also, leaving an abscess to resolve itself can occasionally result in the formation of a fibrous lump, or possibly a calcified mass, in the area.

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