A Pilonidal Sinus (PNS) is an inflammatory condition in which small cyst or abscess occurs in the cleft at the top of the buttocks.

 

Sign & symptoms include 

• Pus or blood draining from the abscess, causing a foul odor

• Swelling 

• Hair protruding from the lesion

• Swelling

• Formation of more than one sinus tract, or holes in the skin

• Reddened, sore skin around the area

 

Treatment options include laser , Z- plasty and open excision.