Can a ganglion cyst be caused by repetitive motion?
Repetitive motion is not a well-recognized cause of ganglion cysts. However, repetitive motion can cause a ganglion cyst to hurt. A ganglion cyst is a fluid-filled cyst that develops near a joint or tendon. It often feels rock-hard. The fluid inside is a thick, gel-like material. The most common location for this cyst is the back of the hand. The cause is unknown. One theory about how they form is that the lining of the joint or tendon develops a small tear, possibly as the result of trauma. Fluid surrounding the joint or tendon can then leak out, forming a cyst. Many people with ganglion cysts have no pain at all. However, repetitive motion may cause them to hurt, especially if the cyst is adjacent to a tendon that is repeatedly flexed and extended. Treatment may be unnecessary if there is no pain or other symptoms. Up to half of ganglion cysts go away on their own. When a ganglion cyst causes significant symptoms, a doctor can insert a needle into it and withdraw the fluid. This cure
