Pilonidal Sinus (also known as Sinus, Pilonidal, Pilonidal Cyst): A hair-containing cyst or sinus, occurring chiefly in the coccygeal region.

NIH MeSH · D010864Diseases

Pilonidal Sinus

Also known asSinus, Pilonidal · Pilonidal Cyst · Cyst, Pilonidal · Cysts, Pilonidal · Pilonidal Cysts

Definition

A hair-containing cyst or sinus, occurring chiefly in the coccygeal region.

MeSH classification

  • C04.182.710

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Common questions about Pilonidal Sinus

What does Pilonidal Sinus mean in medicine?
A hair-containing cyst or sinus, occurring chiefly in the coccygeal region. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Pilonidal Sinus known by any other names?
Yes. Pilonidal Sinus is also referred to as Sinus, Pilonidal, Pilonidal Cyst, Cyst, Pilonidal, Cysts, Pilonidal in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Pilonidal Sinus sit in the medical classification?
Pilonidal Sinus falls under the broader medical category "Diseases" in the MeSH hierarchy (tree numbers: C04.182.710). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Pilonidal Sinus?
For a plain-language explanation of Pilonidal Sinus - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Pilonidal Sinus" above.

Source: NIH MeSH 2026 (D010864) — National Library of Medicine, public domain. View official MeSH record ↗