Pilonidal sinus disease is a chronic condition of the natal cleft characterised by the formation of sinus tracts, cysts and abscesses driven by hair penetration and local sepsis. Surgical management ...
A pilonidal sinus is a small tunnel that develops at the top of the crease in the buttocks. Trapped hair around the buttocks crease can lead to an abscess, and a pilonidal sinus may develop as a ...