Pilonidal cysts usually occur when hair punctures the skin and then becomes embedded. If a pilonidal cyst becomes infected, the resulting abscess is often extremely painful. The cyst can be drained through a small incision or removed surgically.

Why do I keep getting pilonidal cysts?

Experts don't yet know all the causes of pilonidal cysts. However, they do know that ingrown hairs found in the crease of the buttocks result in a skin infection that causes a pilonidal cyst to form. Think of this condition like getting a sliver of wood stuck in your skin, except it's an ingrown hair instead.

Is pilonidal cyst serious?

While the cyst is not serious, it can become an infection and should therefore be treated. When a pilonidal cyst gets infected, it forms an abscess, eventually draining pus through a sinus. The abscess causes pain, a foul smell, and drainage. This condition is not serious.