Ganglion Cysts

Ganglion cysts are very common, noncancerous, fluid-filled lumps within the hand and wrist. Cysts typically form adjacent to joints or tendons and can range from pea-sized to an inch. The most common locations are at the top of the wrist, palm side of your hands and fingers, and joints of your hands. Ganglion cysts can sometimes resemble a water balloon and can feel soft, firm, or rubbery to the touch.

Ganglion cysts often go away on their own and for most are painless. Pain may be experienced if a cyst is causing pressure on a nerve or affecting joint movement. Learn more about treatment options below.

Symptoms

Minor to moderate discomfort
Decreased range of motion in the affected area
If a cyst applies pressure against a nerve it can cause numbness, tingling, and weakened grip

Causes

An actual cause is unknown however, it is thought that ganglion cysts form in the presence of joint or tendon inflammation, irritation, or mechanical changes.

Risk Factors

Osteoarthritis
Joint or tendon injury

Diagnosis

Ultrasound, MRI, or x-ray to evaluate related conditions and locate potential hidden cysts

Treatment Options

Aspiration to drain the fluid of the cyst
Surgical removal may be recommended in severe cases