There are different types of pilonidal cyst surgery. One involves cutting the cyst to drain the fluid, while another involves removing the cyst completely. Depending on the surgery type, a person can ...

A pilonidal sinus is a small infected tract or a network of interlinking tracts under the skin between the buttocks. The exact cause is unknown but it may be from loose hairs pushing into the skin, ...

Also known as a pilonidal cyst, the condition forms when a sac of tissue fills with air or fluid in the crease of your buttocks. Pilonidal cyst, doctors say, is mostly caused by a skin infection.