A ganglion cyst is a fluid-filled sac that appears as a lump, usually at the top or underside of the wrist. These cysts can also develop at the base of a finger or at the end joint of a finger, where they are called mucous cysts.
When to Seek Treatment for a Ganglion Cyst
In some cases, a lump is the only sign of a ganglion cyst. But if the cyst puts pressure on nearby nerves, it can cause pain, tingling, or muscle weakness, or interfere with your grip strength or range of wrist motion. If you’re having symptoms like these, it’s a good idea to see a hand and wrist specialist for a thorough evaluation and to learn about your treatment options.