Ganglion cysts typically affect the wrist and hand. They do not often cause pain, but they can. The cysts fill with fluid that puts pressure on nearby nerves and triggers pain in the fingers, hand, or wrist. Splinting and resting the area can cause the cyst to diminish. Up to half of ganglion cysts disappear on their own. However, it's best to have a health care provider examine these growths — the physician may choose to drain the cyst or remove it completely.

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