A wrist ganglion, also known as a synovial cyst, is a fluid-filled lump that commonly appears on the back or front of the wrist. It is a benign condition, but it can cause discomfort or interfere with joint movement.

Why does a wrist ganglion appear?

A wrist ganglion forms when synovial fluid, which lubricates the joints and tendons, accumulates in an abnormal capsule or bursa. Although there is not always a clear cause, some factors may influence its appearance:v

Repetitive use of the wrist: Activities such as writing, typing, or playing sports can put stress on the joint.

Previous injuries: A blow or sprain to the wrist can trigger the cyst’s formation.