Ganglion Cysts usually form near joints. 3 or 4 ganglion cysts create a mass that often forms on your wrist. They can also form on your ankle and foot.
The fluid in the ganglion comes from a joint or tendon through a narrow channel.
Ganglion cysts are most common in patients between the ages of 15 – 40, although they can develop at any age. There is no clear reasons to support what causes these ganglion cysts to form, but studies tend to show that they may be related to prior trauma or possibly arthritis.
Most ganglion cysts form a visible lump but in some cases they can create smaller masses that remain hidden under your skin. Although many ganglion cysts produce no other symptoms, if a cyst puts pressure on the nerves that pass through the joint, it can cause pain, tingling, and muscle weakness.