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.

Most vaginal bumps are harmless, but some might signal an infection. Other causes may include cysts, ingrown hairs, and, in rare cases, vaginal cancer. Vaginal bumps will resolve and typically go ...

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 ...