What are Ganglion Cysts?
Ganglion cysts are noncancerous lumps that most commonly develop along the tendons or joints of your wrists or hands. They also may occur in the ankles and feet. Ganglion cys
ts are typically round or oval and are filled with a jelly-like fluid.
Small ganglion cysts can be pea-sized, while larger ones can be around an inch (2.5 cm) in diameter. Ganglion cysts can be painful if they press on a nearby nerve. Their location can sometimes interfere with joint movement.
The lumps associated with ganglion cysts can be characterized by:
- Location. Ganglion cysts most commonly develop along the tendons or joints of your wrists or hands. The next most common locations are the ankles and feet, although these cysts can occur near other joints as well.
- Shape and size. Ganglion cysts are round or oval and usually measure less than an inch in diameter. Some are so small that they can’t be felt. The size of a cyst can fluctuate, often getting larger when you use that joint for repetitive motions.
- Pain. Ganglion cysts usually are painless. However, if a cyst presses on a nerve — even if the cyst is too small to form a noticeable lump — it can cause pain, tingling, num
bness or muscle weakness.