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A pilonidal cyst is a closed sac under the skin at the top of the
crease of the buttocks. Pilonidal cysts usually do not cause problems unless
they become infected.
The cause of a pilonidal cyst is unclear. They usually occur in men
in their late teens through 20s, although they are occasionally noticed at
birth as a depression or sometimes as a hairy dimple.
Symptoms of an infected pilonidal cyst (abscess) include:
If a pilonidal cyst develops a long-lasting or frequently recurring
infection, it is called pilonidal disease. Treatment includes surgical drainage
or surgical removal.
Current as of:
February 20, 2015
Anne C. Poinier, MD - Internal Medicine & C. Dale Mercer, MD, FRCSC, FACS - General Surgery
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