A wrist ganglion is a fluid-filled lump that can develop on the back or front of the wrist, often appearing and disappearing over time. It forms when synovial fluid, which lubricates the joints, collects in an abnormal sac. Though the exact cause isn’t always clear, repetitive wrist movements, previous injuries, arthritis, and genetic factors may contribute to its development. These cysts vary in size and may cause discomfort, pain, or even numbness if they press on a nerve. While generally harmless, they can interfere with wrist movement, making early identification and proper management important.

Treatment options for a wrist ganglion depend on the severity of symptoms. If the cyst isn’t painful or limiting movement, doctors may recommend watchful waiting, as some ganglions resolve on their own. For mild discomfort, wearing a splint can help reduce pressure on the joint. If the lump becomes bothersome, aspiration (fluid drainage) may offer temporary relief, though the cyst can return. In more severe cases, surgical removal may be necessary to prevent recurrence. Consulting a healthcare provider is crucial if the cyst causes persistent pain or mobility issues, ensuring the best course of action for relief.