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Health condition · Clinically reviewed

Ganglion cysts, the most common lump of the hand and wrist - and how to treat it well.

Almost always benign, often quiet, sometimes a real nuisance. This guide walks through where ganglion cysts appear, when to leave them alone and how modern UK hand surgery treats the ones that need help.

Also see our companion pages on the general ganglion overview and the singular ganglion cyst guide.

Jump to treatment
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Why trust this guide

  • 01

    Clinically reviewed

    Written by our editorial team and reviewed by a registered UK clinician before publication.

  • 02

    Sourced from guidance

    Checked against BSSH, BOA and peer-reviewed hand-surgery literature you can see at the end.

  • 03

    Current for 2026

    Reflects modern UK practice including watchful waiting, aspiration and arthroscopic excision.

Key facts

Ganglion cysts at a glance.

The essentials, in plain English - what a ganglion is, where it appears and how it is treated in the UK today.

  • What it is

    A benign, jelly-filled cyst arising from a joint capsule or tendon sheath - the most common soft-tissue lump of the hand and wrist.

  • Locations

    Wrist dorsal (60 to 70 per cent), volar wrist, flexor tendon sheath (seed ganglion), digital myxoid, knee (Baker cyst) and foot.

  • Who gets them

    Any age, most often 20 to 50, women slightly more than men - often after repetitive wrist or hand use.

  • How it feels

    A smooth, firm or rubbery lump - sometimes painless, sometimes aching, occasionally pressing on a nerve.

  • First-line care

    Reassurance and observation - up to half of ganglia resolve on their own within a few years.

  • When to treat

    Persistent pain, functional limitation, nerve pressure or clear cosmetic distress - not the lump itself.

Why this guide matters

A common lump, worth understanding well.

Ganglion cysts are the single most common soft-tissue mass of the hand and wrist. The three points below shape everything else on this page.

  • It is almost always benign

    A classic transilluminating wrist ganglion is a benign lesion - not a tumour, not cancerous, and cannot become cancerous.

  • Doing nothing is a real option

    Up to half of ganglia resolve on their own. Watchful waiting is a legitimate first-line plan for a painless cyst.

  • Modern surgery has a low recurrence

    Open or arthroscopic excision by an experienced hand surgeon has recurrence rates in the 5 to 15 per cent range for the dorsal wrist.

How the diagnosis is made

From first lump to a clear plan.

The steps a UK GP or hand surgeon will normally follow, in order - so you know what to expect and why.

  1. 01

    Assessing

    Focused history

    Duration, size fluctuation, activity link, pain pattern, tingling or weakness - the classic story is often diagnostic on its own.

  2. 02

    Assessing

    Clinical examination

    A smooth, well-defined, mobile lump that transilluminates - overlying skin normal, no warmth or redness.

  3. 03

    Assessing

    Rule out mimics

    Lipoma, epidermoid cyst, giant cell tumour of the tendon sheath, Heberden node, rheumatoid nodule and vascular malformations all look similar.

  4. 04

    Confirming

    Ultrasound - first-line imaging

    A quick, radiation-free scan confirms a fluid-filled cyst, its origin and its relation to vessels and nerves - useful before any procedure.

  5. 05

    Confirming

    MRI when needed

    Reserved for occult volar-wrist ganglia, atypical features, deep lesions or when a solid tumour cannot be excluded.

  6. 06

    Preparing

    Shared decision on treatment

    Watchful waiting, aspiration or surgical excision - chosen against symptom burden, hand dominance and occupation.

  7. 07

    Preparing

    Hand-therapy plan

    Where wrist mechanics are contributing, targeted physio protects the joint and reduces recurrence risk after treatment.

Typical timeline: a first visit to a settled plan in a matter of weeks.

Symptoms

What ganglion cysts actually look like.

A pattern of smooth, jelly-filled swellings in a handful of classic locations - and the features that mean it is time to escalate.

  • Dorsal wrist swelling

    The classic lump - back of the wrist, worse with extension, often prominent when the wrist is flexed forwards.

  • Volar wrist lump

    Front of the wrist near the radial artery - trickier to treat because of vessels and nerves nearby.

  • Flexor tendon sheath (seed) ganglion

    A tiny, hard pea at the base of a finger on the palm side - tender when gripping.

  • Digital myxoid cyst

    A small cyst near the fingernail from the distal interphalangeal joint - often linked to osteoarthritis and nail grooves.

  • Baker cyst (knee)

    A ganglion-type cyst in the popliteal fossa - often a marker of underlying knee joint disease.

  • Foot and ankle cysts

    Dorsum of the foot, around the ankle or near tarsal joints - can rub against footwear.

  • Nerve pressure

    Numbness, tingling or weakness suggests the cyst is pressing on the median, ulnar or a digital nerve.

  • Red flag - rapid growth or fixed lump

    Any hard, fixed, rapidly enlarging or warm lump deserves urgent assessment - ganglia are almost always the answer, but not always.

Treatment

How ganglion cysts are treated in the UK.

Reassurance and observation first, aspiration or cortisone next, and surgical excision for persistent or symptomatic disease.

  • Reassurance and observation

    For a painless ganglion with no functional impact - up to 50 per cent resolve spontaneously over two to three years.

  • Activity and splint changes

    A short spell in a wrist splint plus workspace tweaks can settle inflammation and reduce pressure symptoms.

  • Simple analgesia

    Paracetamol or a short course of an anti-inflammatory helps aching cysts without the risks of steroid or surgery.

  • Aspiration

    A needle drains the jelly under clean technique or ultrasound guidance - quick, low-risk, but recurrence rates are 40 to 80 per cent.

  • Cortisone injection

    A small dose of steroid, often after aspiration, calms adjacent synovium - useful for painful cysts near a joint.

  • Open surgical excision

    Removes the cyst and its stalk from the joint capsule - lowest recurrence rate, done under local or regional anaesthetic.

  • Arthroscopic excision

    Keyhole removal of a dorsal wrist ganglion via small portals - smaller scar and equivalent recurrence in experienced hands.

  • Hand therapy after treatment

    Structured mobilisation and strengthening protects wrist range and reduces stiffness in the weeks after surgery.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or hand surgeon knows your history and can tell you which parts apply to you. If in doubt, get seen.

  • British Society for Surgery of the Hand (BSSH). Patient information - Ganglion cysts.

  • British Orthopaedic Association (BOA) standards on soft-tissue hand pathology.

  • NICE Clinical Knowledge Summary. Ganglion.

  • Journal of Hand Surgery (European Volume). Reviews on aspiration, open and arthroscopic ganglion excision.

Red flags

When a lump needs urgent attention.

Most ganglia are boringly benign. These are the situations that are not - and where a specialist opinion is needed quickly.

  • Rapid growth

    A lump enlarging over weeks rather than months, or one that suddenly changes character, needs prompt imaging and specialist review.

  • Hard, fixed or warm mass

    Ganglia are typically soft or rubbery and mobile - a fixed, hard or inflamed lump warrants urgent assessment to rule out other causes.

  • Progressive nerve symptoms

    Worsening numbness, tingling or muscle weakness suggests nerve compression and a lower threshold for imaging and surgery.

  • Vascular compromise

    Colour change, coldness or pulsatile swelling near a volar wrist cyst needs same-day vascular review.

  • Skin breakdown or infection

    Redness, discharge, ulceration or fevers indicate infection - not typical of a ganglion and needs urgent antibiotics and drainage.

  • Suspicious features on ultrasound

    Solid, vascular or ill-defined lesions on imaging need MRI and, in some cases, biopsy under specialist care.

  • Recurrent pain after surgery

    Persistent or worsening pain after excision may reflect scar neuroma, joint disease or genuine recurrence and deserves reassessment.

  • Paediatric ganglion

    Ganglia in children are usually managed conservatively - most resolve on their own without any procedure.

  • Suspected sarcoma

    Deep-seated, non-transilluminating, rapidly growing lumps must be treated as sarcoma until proven otherwise on MRI.

Living with it

A benign lump, with a clear plan.

Four things that make the biggest difference day to day - perspective, patience, load management and knowing when to act.

A quiet reminder

Treat the symptoms, not the lump.

A ganglion is only a problem if it makes life harder. If it does not, watchful waiting is a proper answer.

  1. 01 Perspective

    It is almost always benign

    Ganglia are the most common soft-tissue lump of the hand and wrist. Knowing that up front takes the fear out of the diagnosis.

  2. 02 Watch

    Waiting is a valid plan

    A painless cyst rarely turns into something worse. Photograph and measure it every few months and only act if life is being affected.

  3. 03 Activity

    Adjust load, not lifestyle

    A short splint, a different mouse or racquet grip and a few weeks of load management can settle the ache without needing surgery.

  4. 04 Escalate

    Act on symptoms, not size

    Persistent pain, weakness, numbness or an inability to do your job or your sport is the reason to treat - not the lump itself.

Frequently asked

Everything we get asked about ganglion cysts.

Quick answers on watchful waiting, aspiration, surgery, recurrence and imaging.

  • What is a ganglion cyst?

    A benign, fluid-filled swelling that grows out of a joint capsule or tendon sheath. It contains a thick, clear jelly and is the most common soft-tissue lump of the hand and wrist. It is not a tumour, not cancerous and cannot become cancerous.

  • Do ganglion cysts need treating?

    Not always. Up to half resolve on their own over two to three years. Treatment is offered when the cyst causes persistent pain, restricts function, presses on a nerve or is a source of genuine cosmetic distress - not simply because it is there.

  • Where do ganglion cysts appear?

    Most sit on the back of the wrist (dorsal), the next most common site is the front of the wrist (volar). Others include the base of a finger (flexor tendon sheath or seed ganglion), the fingertip near the nail (digital myxoid cyst), the back of the knee (Baker cyst) and the foot or ankle.

  • Does hitting it with a book work?

    No. The old advice to strike a ganglion with a heavy book is discredited and unsafe - it risks fractures, tendon injury and nerve damage. Aspiration and surgical excision are the evidence-based options if treatment is needed.

  • What is the recurrence rate after aspiration or surgery?

    Aspiration recurrence rates range from 40 to 80 per cent depending on the site. Open and arthroscopic surgical excision reduce recurrence to around 5 to 15 per cent for a dorsal wrist ganglion in experienced hands.

  • When should I get imaging?

    A clear-cut, transilluminating wrist ganglion usually needs no imaging. Ultrasound is the first-line investigation for atypical or volar cysts, and MRI is used when the diagnosis is uncertain, the lesion is deep or a solid tumour must be excluded.

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