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Print: What is a pilonidal cyst?
A pilonidal cyst is a small sac inside the skin that is usually located near the tailbone at the top of the buttocks crease. Pilonidal (say: “pie-low-NYE-dull”) means “nest of hairs.” A pilonidal cyst can contain hair, skin fragments and other abnormal tissue.
Anyone can have a pilonidal cyst, but it is more common in young men.
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Written by familydoctor.org editorial staff
Reviewed/Updated: 02/11
Created: 12/09
