Orthopedics Hand & Wrist Print How to Treat Wrist Ganglion Cyst Lumps on the Back of the Hand By Jonathan Cluett, MD twitter linkedin Jonathan Cluett, MD, is a board-certified orthopedic surgeon with subspecialty training in sports medicine and arthroscopic surgery. Learn about our editorial process Jonathan Cluett, MD Medically reviewed by Medically reviewed by Stuart Hershman, MD on January 26, 2020 linkedin Stuart Hershman, MD, is a board-certified spine surgeon. He specializes in spinal deformity and complex spinal reconstruction. Learn about our Medical Review Board Stuart Hershman, MD on January 26, 2020 More in Orthopedics Hand & Wrist Hand & Wrist Fractures Finger Conditions Wrist Conditions Carpal Tunnel Syndrome Dupuytren's Contracture Home Office Ergonomics Sprains & Strains Fractures & Broken Bones Physical Therapy Orthopedic Surgery Osteoporosis Pediatric Orthopedics Sports Injuries Shoulder & Elbow Hip & Knee Leg, Foot & Ankle Assistive Devices & Orthotics Medication & Injections View All In This Article Table of Contents Expand Causes Symptoms Diagnosis Treatment View All Back To Top A wrist ganglion cyst is a swelling that usually occurs around the hand or wrist. A ganglion cyst is a fluid-filled capsule; they are not cancerous, will not spread, and while they may grow in size, they will not spread to other parts of your body. Ganglion cysts can occur on the back of the hand or on the palm side of the wrist. When they occur on the back of the hand, they are called a dorsal ganglion cyst. When they occur on the palm side of the wrist they are called volar ganglion cysts. Causes Ganglion cysts are in fact not even "true cysts," but rather arise as pouches of fluid that comes from the small joints of the wrist, or from the fluid within the sheath that surrounds the wrist tendons. When the fluid, called synovial fluid, leaks out from these spaces, it can form a sack-like structure that we call a ganglion cyst. The fluid within the ganglion cyst is identical to the normal fluid found within a joint or within a tendon sheath. The fluid is gelatinous and looks and feels like jelly. It is important to have this type of lump checked by your doctor to ensure it is simply a ganglion cyst. While most lumps and bumps of the hand and wrist are ganglion cysts (by far the most common), there are other conditions that have different treatments. Other types of tumors such as a lipoma or giant cell tumor, infections, carpal bossing (bone spur), and other conditions can cause lumps around the wrist. Symptoms Ganglion cysts are usually noticed as a bump on the hand or wrist. Most people notice they may gradually change in size, and sometimes come and go, often depending on activity level. This photo contains content that some people may find graphic or disturbing. See Photo Wrist ganglion cyst example. Wikimedia Commons Typical symptoms of a ganglion cyst include: Pain and tendernessDifficulty with gripping activitiesNumbness and tingling Most of the symptoms are thought to be the result of pressure from the cyst on surrounding structures including tendons and nerves. Diagnosis Ganglion cysts may be tender, but most often it is the appearance of the cyst that bothers patients. The cyst should not adhere to the skin, and the skin should have a normal color. One test to diagnose a ganglion cyst is to hold a light source, such as a small flashlight, against the cyst. A normal ganglion cyst will trans-illuminate, meaning light will pass through the cyst indicating it is not a solid mass. Special studies are typically not necessary, but some doctors will obtain an X-ray just to ensure the anatomy and structure of the hand and wrist is normal. If there is a question about if the bump is a cyst or something else, imaging tests including ultrasound or MRIs can be helpful. Treatment Sometimes, wrist ganglion cysts go away with no treatment, or they may linger around or even grow larger. The cysts typically form a type of one-way valve such that fluid enters the cyst easily, but cannot escape. When the ganglion cyst becomes large enough, it will begin to put pressure on surrounding structures. This pressure can cause painful symptoms and is usually the reason these ganglion cysts are removed. There are several methods of treatment for a wrist ganglion cyst. No Treatment Many hand and wrist experts recommend no treatment for cysts at all. While some people don't like the look of a ganglion cyst, and some people have discomfort, the cysts are generally not harmful, and many patients feel much better once reassured that the cyst is not going to cause any long-term problem. Particularly with volar ganglion cysts, the treatment can be problematic, and complications including infection, tendon injury, and recurrence of the cyst can all occur. If the cyst can be tolerated, many experts advise they be left alone. Aspiration Putting a needle into the ganglion cyst and aspirating the fluid may work. However, the gelatinous fluid within the cyst does not always come through a needle very well. Furthermore, this treatment leaves the cyst lining behind, and the ganglion cyst will return about 50 percent of the time. The advantage of draining the cyst is that it is a simple procedure to perform, and the chance of a problem happening is very small. The downside is that the chance of recurrence is quite high. Surgery The most aggressive treatment for a persistent or painful ganglion cyst is to remove it with a surgical procedure. During surgery, the wrist ganglion is completely excised, including the sac that surrounded the fluid. In addition, the connection to the joint or tendon sheath that supplied the fluid can be occluded. While this usually is effective, a small percentage of removed wrist ganglion will still return. Surgical treatment has been well described both as an open surgical procedure (through a skin incision) and as an arthroscopic procedure. Different surgeons have preferences for their favored approach. Home Remedy Another alternative, that some call traditional, others call a bit barbaric, is to smash the wrist ganglion cyst with a hard object such as a book. This pops the cyst and ruptures the lining of the sac. While many people are familiar with this treatment, it is not considered acceptable as there is the potential for other damage from the trauma of the treatment. Attempts to crush the cyst can result in injury. There are rare reports of fracture of the bones around the wrist associated with overzealous efforts to crush the cyst. A Word From Verywell Ganglion cysts are very common causes of bumps around the hand and wrist. A ganglion cyst is not cancer or a problem that requires urgent treatment, but sometimes it can be bothersome for people. When they do become a bother, treatment can be performed to help address the symptoms. Often doctors will try some simple treatments first, and if these are not successful a surgical procedure might be offered to remove the cyst. Was this page helpful? Thanks for your feedback! Dealing with joint pain can cause major disruptions to your day. Sign up and learn how to better take care of your body. Click below and just hit send! Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit Article Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Head L, Gencarelli JR, Allen M, Boyd KU. "Wrist ganglion treatment: systematic review and meta-analysis" J Hand Surg Am. 2015 Mar;40(3):546-53.e8.