A cyst is a sac-like pocket of tissue that contains fluid, air, or other substances.Cysts can grow almost anywhere in your body or on your skin. There are many different types of cysts. Most cysts are benign, or non-cancerous. This pacient has a cyst on his head. See video for more:

CYST Excision ( Removal of Cyst on Head) from All pimples of the world on Vimeo.