A pilonidal sinus is a small cyst or abscess that develops in the gap at the top of the buttocks (PNS). It can cause sev

Pilonidal sinus disease is a disease of the intergluteal region, characterized by the formation of a breast in the cleft

A pilonidal sinus is a small cyst or abscess that develops in the cleft at the top of the buttocks (PNS). It has the pot

A tiny cyst or abscess that arises in the cleft at the top of the buttocks is a pilonidal sinus (PNS). It may cause seri