Skin/epidermal /sebaceous Cysts
Skin cysts are noncancerous, closed pockets of tissue that can be filled with fluid, pus, or other material. They common on the skin and can appear anywhere. They feel like large peas under the surface of the skin. Cysts can develop as a result of infection, clogging of sebaceous glands (oil glands), or around foreign bodies, such as earrings.
They can enlarge and get infected.