What is Ganglion Cyst?

A ganglion cyst is a fluid-filled lump that typically develops near a joint or tendon, most commonly on the wrist or hand, though they can occur elsewhere too. They're usually painless, though some people experience discomfort, particularly if the cyst presses on a nearby nerve or affects joint movement.

Many ganglion cysts shrink or disappear on their own without any treatment. For those causing pain or affecting function, options include monitoring, aspiration (draining the fluid), or, for persistent or troublesome cysts, surgical removal.