A Pilonidal Sinus (PNS) is a tunnel/tract in the skin with small hole at the top of the buttocks near the tailbone, where buttocks divide (the cleft).If your suffering through this ,Get the best treatment for pilonidal sinus treatment in delhi By Jraveda Ayurvedic Clinic. Visit us for more info : https://jraveda.com/pilonidal-sinus-treatment-delhi-ncr.html