Children's Hospital Colorado

Ganglion Cyst

What is a ganglion cyst?

A ganglion cyst is a fluid-filled sac that often develops near a joint or tendon. Ganglion cysts often develop on the hand or wrist. The cyst may change in size and sometimes will go away on its own. The cause is unknown.

An illustration of a hand showing the bones inside and a purple balloon shaped lump on the wrist identified as a ganglion cyst.

Get to know our pediatric experts.

Sarah Sibbel, MD

Sarah Sibbel, MD

Orthopaedic Surgery

Cailin Brazeau, PA-C

Cailin Brazeau, PA-C

Physician Assistant