An ingrown hair cyst is a common skin concern that arises when a hair, instead of growing outwards, curls back and burrows ...

Pilonidal sinus is a skin infection that causes a cyst near the buttocks, just beneath the tailbone. The infection often occurs when an ingrown hair grows internally and infects the skin.

Chae Ruffold, 15, has so far had two failed operations to repair the wound caused by a Pilonidal cyst. The wound, caused by an ingrown hair, is unable to heal due to a genetic condition affecting ...