Ganglion Cysts are the non-cancerous lumps that develops on the joints or the tendons of the wrists of a person or elsewhere. However, they may also develop on the feet or ankles. The shape of the Ganglion Cysts is mostly oval or round shaped which contains gel type fluid. The size of these cysts may change or even disappear but some are painful because of the pressures in the surrounding structures such as blood vessels, tendons, or nerves.