Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Pilonidal cyst

Medically reviewed by Min Clinic Staff | Updated: January 2026

Pilonidal cyst: An abscess that occurs in the cleft between the buttocks at the base of the tailbone (coccyx). Pilonidal cysts are common in adolescence, often after long trips that involve sitting.