Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair follicle, ...

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 ...

After popping what she thought was an ordinary pimple, a woman discovered it was a cyst that would leave her with a permanent scar. Stephanie Warkotsch, 30, noticed the lump on her cheek at the ...