This cyst is also referred to as a pilonidal abscess (inflamed pilonidal cyst), pilonidal sinus or sacrococcygeal fistula.
The cyst will contain skin and hair debris, whereas if it becomes infected and turns into an abscess, it will contain pus.
Most persons with this type of cyst will not have any symptoms, but if
the cyst becomes infected it can become very painful. Draining of an
abscess can give some pain relief.
A sinus tract in the skin
may open up to the surface of the skin allowing the abscess to drain.
Some people may have more than one sinus tract opening up to the
Where is it found?
- Along the tailbone (near the cleft of the buttocks)
- It is also sometimes found (but very rarely) on the navel, armpits and penis
How common is it?
Not very common, only about 26 cases have been found per 100 000
people. Many people may develop this condition though, and may never
even know about it.
- It is mostly found in Caucasian men between the ages of 15 and 24, but can be found on anybody and at any age.
Pilonidal disease causes?
Some pilonidal cysts are hereditary congenital defects of the skin of
the lower spine. The tracts of this defect become clogged up with sweat,
skin and hair. The larger the cyst gets, the deeper it moves (
pilonidal tunnel )inside the body and then therefore can become
uncomfortable and painful, especially if an infection sets in.
- Some babies are born with a Pilonidal dimple
- Injury can cause inflammation of an existing cyst.