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
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Pilonidal: Refers to an embedded (ingrown) hair or tuft of hair. Literally, a nest of hair. From the Latin pilus (meaning hair) and nidus (meaning nest).
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