Ganglions

What it is

Overview

A wrist ganglion, also known as a ganglion cyst, is a common, non-cancerous lump that forms on or near the wrist joint or tendons. It’s a small sac filled with a thick, jelly-like fluid that comes from the lubricating fluid in the spaces between two bones. These cysts are usually harmless and can vary in size, sometimes growing as big as a golf ball or shrinking on their own. They often appear on the back of the wrist but can also show up on the palm side or at the base of the fingers.

Most people notice a ganglion cyst as a visible bump under the skin that may feel firm or spongy.


When to see specialist

Common signs and symptoms include mild pain or discomfort, especially when bending the wrist or gripping objects. You might also experience tenderness, a feeling of weakness in the hand, or occasional tingling if the cyst presses on nearby nerves. In many cases, there are no symptoms at all, and the cyst is just a cosmetic concern.

Causes & risk factor

The exact cause of wrist ganglions isn’t fully understood, but they often develop when fluid leaks from a joint or tendon sheath, forming a cyst due to irritation or minor damage. Several factors can contribute to this.

Women between 20 and 40 years old are most commonly affected

COMMON RISK FACTOR
  • Hormonal or activity-related factors
  • Overuse from repetitive wrist movements: like typing, sports, or manual work, is a major trigger as it stresses the joints
  • Trauma, such as a wrist injury or sprain, can also lead to cyst formation by weakening the joint capsule.
  • Genetics may play a role, with some people more prone due to family history or inherent joint weaknesses.
  • Certain health conditions increase risk too—diabetes can affect joint health and fluid buildup, while smoking may impair healing and circulation, making cysts more likely in smokers.

Treatment Options

Treatment depends on symptoms and duration.

non-surgical

First-line Option Treatment

  • Observation (watch and wait): About 50% disappear on their own within a year. 
  • Immobilization: Wearing a wrist brace to limit movement and reduce irritation. This can help shrink the cyst, with a success rate of around 40% in relieving symptoms.
  • Aspiration: Draining the fluid with a needle- high recurrence rate of 50%.
  • Steroid injection: Usually does not work.
surgical

If non-surgical methods fail or symptoms persist, surgery may be recommended.

Excision: Removing the cyst through a small incision.

Success rate

High success rate and fast recovery. Ganglions on the front (palm side) of the hand have a higher recurrence rate of around 20%.

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