Dorsal Wrist Ganglion
Ganglions are small sacs (cysts) filled with clear, jellylike fluid. They often appear as bumps on the hands and wrists, but they can also develop on the feet, ankles, knees, or shoulders. A ganglion can grow out of a joint capsule, which surrounds and protects the joint, or out of a tendon sheath, which covers the tendon (the ropey fibers connecting muscle to bone). Most people with ganglions notice that the bumps appear suddenly.
What are the symptoms of ganglions?
Ganglions are usually small, painless bumps and do not cause other symptoms.
Sometimes the bump can be tender to the touch, or there can be pain that gets worse with activity or pressure. If the ganglion puts pressure on nearby nerves, you may have tingling in your fingers, hand, or forearm. Some ganglions can weaken your grip or affect joint motion.
How are ganglions diagnosed?
A ganglion can usually be diagnosed based on how it looks and where it is. Your doctor will also feel the bump and shine a light alongside it. If the bump is a ganglion, the light usually shines through it.
You may need an X-ray if your doctor suspects arthritis or injury. Some of the fluid found in the ganglion may be removed and examined. In rare cases, an MRI or ultrasound may be done.
How are ganglions treated?
Ganglions usually don't need treatment, and they often go away on their own. But treatment may be needed if the ganglion causes pain or other symptoms, limits what you can do, affects your bones or ligaments, or gets infected. You may also want treatment if you're bothered by how the bump looks.
Your doctor may treat a ganglion by:
- Giving you a wrist or finger splint to wear.
- Draining fluid from the bump with a needle (aspiration).
- Injecting hydrocortisone into the joint.
- Doing surgery to remove it.
With or without treatment, ganglions may come and go and may get bigger or smaller.
Copyrighted material adapted with permission from Healthwise, Incorporated. This information does not replace the advice of a doctor.