Ganglion cysts form when synovial fluid leaks from a joint or tendon sheath and collects under the skin. This can result from repetitive stress, joint irritation, or injury. They are most common in young adults and can vary in size, often growing larger with activity and shrinking with rest.
Common signs include a visible lump near a joint, mild discomfort or pain (especially with movement), and a sensation of pressure or tingling if nerves are compressed. Some cysts are painless and only noticed due to their appearance. Large ganglions may affect joint function.
Repeated stress or overuse of joints, prior injuries, and certain joint conditions like arthritis may increase the risk of developing ganglions. Women are more likely than men to develop them, especially between ages 20–40. Activities involving repetitive wrist or hand motions are a contributing factor.
Ganglions may resolve on their own or require treatment if painful or bothersome. Non-surgical options include aspiration (fluid drainage) and wearing a splint to reduce irritation. In persistent or recurrent cases, surgical removal may be considered. Avoid popping or puncturing cysts at home, as it can cause infection.
See a healthcare provider if a cyst is painful, growing rapidly, or interfering with joint movement. Seek medical attention if redness, warmth, or infection signs appear. A proper diagnosis ensures safe and effective treatment, especially if the lump resembles other growths.