Ganglion cysts

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Definition Symptoms Causes Risk factors

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Definition

Ganglion cysts are noncancerous fluid-filled lumps (cysts) that most commonly develop along the tendons or joints of your wrists or hands. They may also appear in your feet.

A ganglion cyst may develop suddenly or gradually over time. The exact cause is unknown.

In most cases, ganglion cysts will cause you no pain and require no treatment. Often, they go away on their own. When you do need treatment for ganglion cysts — due to pain or interference with joint movement or for cosmetic concerns — it usually consists of removing the fluid from the ganglion cyst or surgically removing the cyst.

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Symptoms