Ganglion cysts are noncancerous lumps that develop in the wrists or hands. These round or oval fluid-filled cysts develop along tendons or joints. Ganglion cysts are the most common masses found in the wrist and hand. They can be small, pea-sized lumps or larger cysts around one inch in diameter.

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What are the signs and symptoms of a ganglion cyst?

  • Visible lump in affected area
  • Occasional pain
  • Occasional numbness

What causes ganglion cysts?

The cause of ganglion cysts is currently unknown.

How is a ganglion cyst diagnosed?

  • Physical exam
  • Imaging if necessary:
    • X-rays
    • Magnetic resonance imaging (MRI)

How are ganglion cysts treated?

Treatment is typically not needed for ganglion cysts. In most cases, the cysts go away on their own.

However, treatment may be necessary if a ganglion cyst is causing pain. In these cases, doctors may recommend a splint, needle aspiration or surgery. Doctors at Connecticut Children’s can help determine the right plan to treat your child’s condition.