A member asked:

I have a bubble imbetween my buttcheek what could it be ?

7 doctors weighed in across 2 answers

Pilonidal sinus: If the "bubble" has persisted for more than a week, it is time to see a doctor. It could be from friction between the "cheeks" which may get agravated by hair lodging in the wound. The "bubble" could get infected and become a chronic ulcer.

Answered 3/13/2019

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Pilonidal cyst: You may have a pilonidal cyst. A pilonidal cyst is a cyst that develops along the tailbone (coccyx) near the cleft of the buttocks, approximately 5 cm from the anus. These cysts usually contain hair and skin debris.Individuals with a pilonidal cyst may not have any symptoms at all (termed asymptomatic), whereas others may develop an infection of the cyst with associated pain.

Answered 4/1/2013

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