A ganglion is a lump under the skin that contains fluid. Most ganglions form near the wrist joint but they can also be found on the ankle and foot. The fluid in the ganglion is called synovial fluid, and it keeps joints and tendons lubricated during movement.

Ganglions are mostly a cosmetic issue but sometimes can cause pain or discomfort.  There is no clear explanation on how they form or what the cause is. A ganglion will often disappear on its own after a year or two. If your ganglion is not causing much trouble, it is best to leave it alone.

The fluid can be taken out of the ganglion using a needle. This improves any discomfort for a while. Your doctor may also inject the ganglion with a steroid (cortisone). These treatments may help for a short time.

What are the benefits of ganglion removal surgery?

The lump and any discomfort from it should disappear. Surgery gives the best chance of stopping the ganglion coming back.

What will happen during a ganglion removal?

A variety of anaesthetic techniques are possible. The ganglion removal operation usually takes between a quarter of an hour and half an hour.

Your surgeon will make a cut over the ganglion and separate the ganglion from the nearby tendons, nerves and blood vessels. They will then remove the ganglion.