What is a ganglion cyst?
A ganglion cyst is a swollen lump near a joint or tendon. Most ganglion cysts rarely cause symptoms, unless they place pressure on nearby nerves. Ganglion cysts are most common in the hand, wrist, and foot. Ganglion cysts respond well to treatment, but can recur over time.

What are the symptoms of a ganglion cyst?
Symptoms of a ganglion cyst include a soft lump under the skin that is not tender. Ganglion cysts are often located on the wrist or the top of the hand or foot. Other symptoms include numbness, tingling, and pain around the cyst.

How does the doctor treat a ganglion cyst?
About half of all ganglion cysts resolve without treatment. Treatment for ganglion cysts may include needle aspiration or surgery to remove the cyst.