Written by Mavis Tham, Principal Hand Occupational Therapist at Phoenix Rehab, AHPC A1800276C.Clinically reviewed by Nigel Chua, Principal Hand Occupational Therapist & Director, AHPC A1300362Z.Last reviewed 7 October 2026.
A wrist ganglion cyst is a benign, fluid-filled lump that grows out of a wrist joint or a tendon sheath, most often on the back of the wrist. It can change size, and many go away without treatment. Most are painless. Some ache when you lean on a bent-back wrist. A doctor confirms it.
Key takeaways
- A wrist ganglion cyst is a benign lump filled with thick, clear fluid. It grows out of a wrist joint or a tendon sheath, and most sit on the back of the wrist.
- It can grow, shrink or disappear and come back. Many go away without any treatment.
- Most are painless. The usual complaints are an ache with weight through a bent-back wrist, in a plank, a push-up or downward dog, and a lump that presses on a nerve.
- A doctor confirms the lump is a ganglion and decides on any scan, aspiration or surgery. That decision belongs to your doctor or hand surgeon.
- See a doctor the same day for a lump that is hard and does not move under the skin, is growing fast, is painful at night, changes the skin over it, or comes with numbness or weakness in the hand.
What is a wrist ganglion cyst?
A ganglion is a small sac of thick, clear, jelly-like fluid, joined by a stalk to the lining of a joint or a tendon sheath underneath. It is benign. It does not spread. Doctors also call it a synovial cyst.
The fluid can move in and out through the stalk, which is why the lump changes size. It is often bigger after a heavy week at the keyboard or the gym, softer some mornings than others, and sometimes gone for months before it comes back.
On the back of the wrist (dorsal ganglion)
This is the common one. Sixty to seventy percent of wrist ganglia sit on the back of the wrist.1 The stalk usually starts near the scapholunate ligament, which joins two of the small wrist bones, though it can arise from other points on the back of the joint capsule.1 Bend the wrist forward and the lump stands out. Bend it back and it disappears into the wrist, and that is where the squeeze comes from in a plank.
On the palm side of the wrist (volar ganglion)
About 13 to 20% sit on the palm side, at the base of the thumb side of the wrist crease.1 This one often lies beside the radial artery, the pulse you feel at the wrist, so it can seem to throb. A palm-side ganglion can also press on the median or ulnar nerve or their branches and cause tingling.1 Tingling in the thumb, index and middle fingers is also typical of carpal tunnel syndrome, and a doctor sorts out which it is.
The ganglion you cannot see
Some ganglia stay small and deep under the tendons and never show as a lump. Doctors call this an occult ganglion. The only complaint is an ache at the back of the wrist, worse with weight through it. Whether a scan is needed to find one is a decision for your doctor.1
Why it aches, in the order to check
1. Weight through a bent-back wrist
The plank. The push-up. Downward dog, crow pose, a burpee, the heel of the hand on the floor getting up from the mat. Each one bends the wrist back with part of your body weight on it, and a ganglion on the back of the wrist sits right where the bones and the tendons close together. See yoga injuries and gym injuries.
2. Something pressing on the lump
A laptop edge or a palm rest under the wrist all afternoon. A watch strap or a fitness tracker sitting on it. A bag strap across the back of the hand. The ache comes from the pressure, and it eases when the pressure goes.
3. Pressure on a nerve
Tingling, burning or a patch of numbness in the hand or fingers, sometimes with weakness. A palm-side ganglion is the usual culprit. This one needs a doctor first. The red flags are below.
Many people remember no injury at all. Some remember a knock or a strain weeks before the lump appeared.
Wrist ganglion, wrist sprain, De Quervain’s, wrist arthritis or a lump that needs a doctor first?
Ask three things: does the lump change size, where does it sit, and did it start with a fall.
| Condition | Where you feel it | What it does | What it needs first |
|---|---|---|---|
| Wrist ganglion, back of the wrist | A soft or firm, smooth, round lump on the back of the wrist, standing out when the wrist bends forward | Grows and shrinks. Often painless. Aches with weight through a bent-back wrist or pressure on it | A doctor to confirm it. Load changes and a splint for flares |
| Wrist ganglion, palm side | A lump at the thumb side of the wrist crease, often beside the pulse | Can throb. Can press on a nerve and cause tingling | A doctor to confirm it, and the same day if there is numbness or weakness |
| Seed ganglion (flexor sheath ganglion) | A small, hard, pea-sized lump on the palm side at the base of a finger | Tender when you grip a steering wheel, a bag handle or a bar. Stays put when the finger bends | A doctor to confirm it. See trigger finger if the finger also catches |
| Mucous cyst | A small, clear lump beside the nail, over the end joint of a finger | Often sits on an arthritic end joint. Can leave a groove down the nail | Leave it alone. A doctor if it leaks or turns red. See finger arthritis and Heberden’s nodes |
| Wrist sprain or scapholunate ligament injury | Back of the wrist, often over the same spot as a ganglion | Started with a fall on the hand. Painful to grip and push up, sometimes a click or a clunk, no lump that comes and goes | A doctor and an X-ray if it followed a fall |
| De Quervain’s tenosynovitis | Thumb side of the wrist, over the bony bump | Builds over weeks of lifting and gripping. Sharp with thumb movement, sometimes a soft swelling over the tendons | Assessment, a thumb splint and a change in grip |
| Wrist arthritis | Deep in the wrist, often after an old fracture or ligament injury | Stiff in the morning, aches with use, a hard bony bump that does not change size | A doctor and an X-ray, then assessment and loading |
| A lump that needs a doctor first | Anywhere on the hand or wrist | Hard and does not move under the skin, growing fast, painful at night, changing the skin over it, or with numbness or weakness in the hand | A doctor the same day |
Do wrist ganglions go away?
Often, yes. A review of the published studies found that about half of wrist ganglia resolve on their own.1 In one study that followed people with a ganglion on the back of the wrist for 6 years, 23 of the 55 untreated ganglia had gone without treatment.2
The same study looked at people who had treatment. The lump came back in 58% after aspiration, where a doctor draws the fluid out with a needle, and in 39% after surgical removal. People were more satisfied after removal, even when the lump came back.2 A 2015 review found aspiration has more recurrences and fewer complications, and open surgery fewer recurrences and more complications.3
Leaving it, draining it or removing it is a decision for your doctor or hand surgeon, made on how much the lump troubles you. Nothing on this page replaces that conversation. The route to one is your GP or a polyclinic. Ask the doctor one question: is this a ganglion, and is there anything about it that needs a scan?
Can you pop a ganglion cyst, or hit it with a book?
Smashing a ganglion with a heavy book is an old remedy, which is why some people still call it a Bible cyst. In published series, the lump came back in 22 to 64% of cases after it was burst by pressure or a blow.1 The blow also lands on the wrist bones and tendons underneath. Do not hit it, and do not push a pin or a needle into it at home, which can let infection into the wrist.
Wrist ganglion treatment: who does what
- A doctor (your GP or a polyclinic doctor) examines the lump, often shines a light through it, decides whether you need an ultrasound, an X-ray or an MRI, and decides on aspiration or a referral to a hand surgeon.
- A hand surgeon decides whether to remove the ganglion, by open surgery or through a wrist arthroscope, and sets the protocol afterward.
- A hand therapist assesses the wrist, measures how far it bends and how much weight it takes, changes the loads that bring the ache on, makes a splint for painful spells, and runs the rehab after surgery.
While the lump is there
Most of the work changes the load on the wrist. A plank on the forearms or on fists keeps the wrist straight. Push-up handles or dumbbells do the same for a push-up. A folded towel or a wedge under the heel of the hand reduces the bend in downward dog. A laptop raised and a palm rest moved off the lump take the pressure off at the desk. See office syndrome for the rest of the desk.
For a painful spell, a custom thermoplastic splint holds the wrist near straight so it can settle. Each one is shaped by hand at the visit. The splint is for comfort during a flare. It is not a treatment for the lump itself. Then the wrist is loaded back in stages: weight through the heel of the hand on a table, then a wall, then the floor.
After the ganglion is removed
The wrist is often stiff bending back after surgery, with a tender scar and some swelling. In the Phoenix Recovery Protocol the work starts at Calm & Protect: the wound, swelling control and the movements your surgeon allows. Move & Mobilize brings back the wrist bend, forward and back, and the scar is worked once it has healed. Rebuild & Strengthen loads grip and weight through the hand. Return & Perform tests the tasks themselves: the plank, the push-up, downward dog, the tray carried on a flat hand. Your surgeon’s protocol sets the weeks. See hand therapy after surgery.
What we measure
- The lump. Where it sits, its size, and whether it is soft or firm and moves under the skin. If anything about it does not fit a ganglion, we write to your doctor.
- Wrist bend. How far the wrist bends back and forward, in degrees, against the other wrist.
- Weight through the hand. How many kilograms you can press through the heel of the hand on a scale, with the wrist bent back, before the ache starts. This is the number that decides when the plank comes back.
- Grip. In kilograms, on both hands.
- Sensation. Feeling in each fingertip, if there is any tingling.
- After surgery. Swelling, how the scar moves, and the wrist bend at every visit.
Tested, not dated. The plan moves on when the measures say so.
What you can do this week
- Leave the lump alone. Do not press it, burst it or hit it.
- Take a photo of it beside a coin once a week. A doctor finds the change in size useful.
- Do planks on your forearms or fists, and push-ups on handles or dumbbells, so the wrist stays straight.
- Move the watch strap and the laptop palm rest off the lump.
- If it aches, rest from the position that brings it on for a few days, and keep the rest of the workout.
- Pain relief and anti-inflammatory medication are a decision for your doctor or pharmacist.
Is this normal?
Usually expected: a lump that is bigger after a busy week and smaller after a quiet one. A lump that disappears for months and comes back. An ache after planks or push-ups that settles within a day. After surgery, swelling, a tender scar, a wrist that is stiff bending back for some weeks, and a small numb patch near the scar that shrinks.
Worth getting checked: a lump that keeps growing month on month. A lump that comes with tingling in the hand. A lump that came back after aspiration or surgery and gets in the way. After surgery, a wrist that is not bending further from one month to the next.
When to see a doctor first
- Call 995 if a wound on the wrist is bleeding heavily and firm pressure does not slow it, for example after someone has tried to burst a lump with a blade.
- Go to the emergency department now if a lump that has been pierced or burst becomes red, hot and swollen, with redness spreading up the forearm, a fever, or pain when you move the fingers. Also if the hand turns cold, pale or blue.
- See a doctor the same day for a lump that is hard, does not move under the skin, is growing fast or is painful at night, a lump with skin changes over it, or a lump with numbness, tingling that does not go away, or weakness in the hand. After surgery, contact your surgeon the same day if the wound is red, leaking or more painful, or you have a fever.
- See a doctor soon for any new lump on the hand or wrist that a doctor has not examined yet, a lump beside the nail that leaks or turns red, or a lump that came back after treatment and gets in the way.
Where are you with this right now?
1. The lump is there, and it does not bother you
A doctor has looked at it, it is soft and smooth, it changes size, and it does not stop you doing anything. That is a ganglion behaving as many do. Many go away on their own, and the photo beside a coin each week tells you which way it is going. You do not need us for this, and we would rather say so.
2. It has been months, and the plank still hurts
You stopped planks in March to let it settle. The lump went down. You went back to the class and on the second round of push-ups the back of the wrist ached again.
Downward dog is on your fists now, and the teacher keeps asking why. You do the burpees on your knuckles. At the desk the laptop edge sits on the lump all afternoon, and you have started typing with the wrist in the air.
Resting it made sense for a flare. In your own months, rest has not changed how much the wrist takes the moment you lean on it.
The lump is smaller. Has anyone measured how far that wrist bends back, and how much weight it takes through the heel of the hand?
If nobody has examined the lump, start with your GP or a polyclinic. If a doctor has confirmed a ganglion and you still cannot take a plank, one Assessment & Treatment with a hand therapist measures the bend and the load against the other wrist, changes what brings the ache on, makes a splint for the flare if you need one, and sets the stages back to the floor.
3. You have had it removed, or you have a date
The surgeon removes the ganglion and its stalk. The weeks after decide how far the wrist bends back and how soon you can lean on it. See hand therapy after surgery. Your surgeon’s protocol takes precedence.
What our patients say
Google reviews from our clinics in Singapore.
If it is months on and the wrist still stops short of the other one bending back, or a plank still hurts over the scar, the Stalled Recovery Review is three weeks with the same hand therapist. The first visit measures the bend and the load through the hand. The next two measure how they respond.
All of it runs on the same four stages. The Phoenix Recovery Protocol explains what each stage works on and what you have to meet to move up. No referral needed to start.
Next step
Find out which stage you are in
Pain is the first thing to leave. Movement and strength are the last things trained back, and most people stop before that part is done. One Assessment and Treatment is a single 45-minute appointment at $230, nett, no GST. Your therapist finds what is actually limiting you, treats it in the same appointment, and you leave with your current stage and a written plan.
Prefer to phone? Each of our five clinics has its own number on the clinics page. No referral needed to book.
Related reading
Sources: 1. Gude W, Morelli V. Ganglion cysts of the wrist: pathophysiology, clinical picture, and management. Curr Rev Musculoskelet Med. 2008;1(3-4):205-211. 2. Dias JJ, Dhukaram V, Kumar P. The natural history of untreated dorsal wrist ganglia and patient reported outcome 6 years after intervention. J Hand Surg Eur Vol. 2007;32(5):502-508. 3. Head L, Gencarelli JR, Allen M, Boyd KU. Wrist ganglion treatment: systematic review and meta-analysis. J Hand Surg Am. 2015;40:546-553.e8.
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