Trigeminal neuralgia surgery (Surgery and procedures for trigeminal neuralgia)
Operations and procedures to ease trigeminal neuralgia — severe, electric-shock-like facial pain — when medicines no longer control it or cause unacceptable side effects.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- These procedures are for trigeminal neuralgia that medicines no longer control or that causes unacceptable side effects.
- Microvascular decompression treats a vessel pressing on the nerve and tends to last longest, but it is brain surgery with real risks.
- The less invasive procedures usually cause some facial numbness and the pain is more likely to return over time.
- No option guarantees permanent relief — choose a neurosurgeon experienced in trigeminal neuralgia and discuss the trade-offs.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your surgeon will give you advice for your situation.
Can relieve severe facial pain when medicines are no longer enough
People whose pain is not yet shown to be poorly controlled despite properly dosed medicines may not need a procedure yet.
You recover in hospital for a few days with headache, tiredness and a sore wound. Pain relief from the neuralgia is often immediate.
A named neurosurgery contact for post-procedure problems.
You recover in hospital for a few days with headache, tiredness and a sore wound. Pain relief from the neuralgia...
Often home the same day or next day. The face may feel numb or swollen on that side; eating on that side needs...
After decompression, headache and fatigue ease and you gradually return to normal activity over several weeks...
Pain relief after radiosurgery builds gradually over this period; numbness or tingling may appear later.
What is trigeminal neuralgia surgery?
Trigeminal neuralgia is a condition that causes sudden, severe, electric-shock-like pain on one side of the face, in the area supplied by the trigeminal nerve. It is often triggered by light touch, eating, talking or a breeze.
Most people are treated first with medicines, usually starting with carbamazepine. Surgery and procedures are considered when medicines stop working well enough or cause side effects that are hard to live with. There is more than one option, and they work in different ways.
Microvascular decompression (MVD) is an operation that lifts a blood vessel off the nerve, treating a common cause without deliberately damaging the nerve. The percutaneous procedures (glycerol injection, radiofrequency lesioning and balloon compression) and stereotactic radiosurgery (sometimes called gamma knife) all work by deliberately injuring the nerve to block the pain signals, which usually causes some facial numbness.
No procedure is guaranteed to remove the pain forever. Decompression tends to give the longest-lasting relief but is bigger surgery; the others are less invasive but the pain is more likely to return and numbness is common. Choosing between them is a careful, individual decision, ideally with a neurosurgeon experienced in this condition.
Types & techniques
There isn't one single operation. The right approach depends on you — which is something to discuss with your surgeon.
Decompression vs the less invasive procedures
| Feature | Microvascular decompression | Percutaneous / radiosurgery |
|---|---|---|
| Damages the nerve | No | Yes, deliberately |
| Facial numbness | Less likely | Common |
| How invasive | Brain surgery | Less invasive |
| Lasting relief | Tends to be longest | More likely to return |
| Main serious risks | Hearing loss, stroke, rare death | Numbness, occasionally severe |
The right choice depends on your age, health, cause, scan findings and how you weigh a bigger operation against longer relief. A neurosurgeon experienced in trigeminal neuralgia should guide this.
Preparing for your surgery
- See a neurosurgeon experienced in trigeminal neuralgia and confirm the diagnosis, usually with an MRI scan.
- Ask which procedures suit you, and weigh longer-lasting relief against how invasive each is.
- Discuss your current medicines and whether they are being taken at the right dose before opting for surgery.
- Tell the team about other health conditions, blood-thinning medicines and any anaesthetic concerns.
- Arrange time off and help at home, especially for the longer recovery after decompression.
- Make sure you understand the specific risks of the procedure you choose, including numbness and the chance pain returns.
What happens
Microvascular decompression is done under general anaesthetic. The surgeon makes a small opening in the skull behind the ear, finds the blood vessel pressing on the trigeminal nerve, moves it away and places a small cushion between them. It usually takes a few hours and needs a few days in hospital.
The percutaneous procedures are done by passing a needle through the cheek to reach the nerve at the base of the skull, usually with sedation or a short general anaesthetic. The nerve is then injured by heat (radiofrequency), glycerol or a balloon. These are often day-case or short-stay procedures.
Stereotactic radiosurgery uses focused beams of radiation aimed precisely at the nerve, with no cut and usually no anaesthetic. It is an outpatient treatment, but relief is not immediate and can take weeks to months to appear.
Is this operation right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- People whose pain is not yet shown to be poorly controlled despite properly dosed medicines may not need a procedure yet.
- Major surgery such as decompression may be unsuitable for people who are frail or have high anaesthetic risk — a less invasive option may be safer.
- If the facial pain is actually a different condition (for example dental pain or another facial pain syndrome), these procedures may not help.
- Secondary trigeminal neuralgia from another cause (such as multiple sclerosis or a tumour) needs that cause addressed and may respond differently.
Delay surgery if…
- The diagnosis has not been confirmed or an MRI has not been done.
- Medicines have not been tried at an adequate dose.
- There is active infection, or blood-thinning medicines need safe adjustment before surgery.
- Other health problems that raise anaesthetic or surgical risk are not yet optimised.
Alternatives to discuss
- Continuing or optimising medicines such as carbamazepine.
- Choosing a less invasive procedure instead of decompression, or vice versa.
- Stereotactic radiosurgery for those unfit for or not wanting open surgery.
- Specialist facial pain or neurology review if the diagnosis is uncertain.
- Repeating a less invasive procedure if pain returns.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Anaesthetic choices
The safest option depends on the operation, your health, the facility and your surgeon/anaesthetist. Ask what is planned and why.
Benefits
- Can relieve severe facial pain when medicines are no longer enough
- Microvascular decompression can stop the pain without deliberately damaging the nerve and often lasts the longest
- The less invasive procedures avoid major surgery and can be repeated
- Stereotactic radiosurgery needs no cut and can suit people unfit for surgery
- Successful treatment can allow medicine doses to be reduced
Risks & complications
- Facial numbness or altered sensation, especially after the nerve-damaging procedures
- Headache, tiredness and a sore wound after decompression
- Pins-and-needles in the face after radiosurgery
- Pain that returns over months or years, sometimes needing further treatment
- Hearing changes or balance problems after decompression
- Weakness of the chewing muscles after some procedures
- Eye-surface problems if the eye area becomes numb (needs protection)
- Infection, including very rarely meningitis after decompression
- Stroke or serious bleeding around the brain after decompression
- Permanent severe numbness, or numbness combined with constant pain (anaesthesia dolorosa)
- Leak of fluid from around the brain after decompression
- Death — very rare, but possible with this type of brain surgery
The central trade-off is that microvascular decompression tends to give the longest relief but carries the serious risks of brain surgery, while the nerve-damaging procedures are less invasive but usually cause numbness and the pain more often returns. Anaesthesia dolorosa — numbness with constant pain — is uncommon but particularly distressing. Ask your neurosurgeon about their own results and the specific risks of the option you are considering.
Published figures to discuss
Success and complication rates differ between the procedures and between surgeons and centres, and depend on the cause and on patient factors. Reported figures vary, so the ranges below are cautious and meant to support discussion. Relief is not guaranteed to be permanent with any option.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Serious complication of microvascular decompression | Around 1 in 1,000 for facial numbness, hearing loss, stroke or death combined (NHS information) | Risk depends on the patient and the surgeon's experience; ask about their own results. | NHS — Trigeminal neuralgia: treatmentnhs.ukPublished figure |
| Pain returning after microvascular decompression | Roughly 3 in 10 within 10 to 20 years (NHS information) | Decompression still tends to give the most durable relief of the options. | NHS — Trigeminal neuralgia: treatmentnhs.ukSource-linked context |
| Facial numbness after nerve-damaging procedures | Common; the main expected side effect of radiofrequency, glycerol, balloon and radiosurgery | Occasionally severe or, rarely, combined with constant pain (anaesthesia dolorosa). | Long-term outcome of microvascular decompression — NEJM (PubMed)pubmed.ncbi.nlm.nih.govSource-linked context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
Recovery — what to expect, and when
Recovery depends on the procedure: a few weeks and a hospital stay after decompression, much less after the percutaneous procedures, and no physical recovery after radiosurgery — though radiosurgery relief takes time to appear.
- Headache and tiredness for a few weeks after decompression
- Facial numbness or a heavy feeling after the nerve-damaging procedures
- Gradual rather than instant relief after radiosurgery
- Needing to take care eating and protecting a numb eye or cheek
Aftercare
- Follow wound-care advice after decompression and keep the wound clean and dry.
- Take painkillers as advised for headache and wound soreness.
- If part of your face or eye is numb, protect the eye and take care with hot food and drink.
- Do not stop your neuralgia medicines suddenly — reduce them only as your specialist advises.
- Build activity back up gradually, especially after decompression.
- Watch for warning signs such as severe headache, fever, neck stiffness or fluid leaking from the nose or wound.
- Keep follow-up appointments so your response and any numbness can be checked.
- Confirmed diagnosis (usually MRI) before the procedure
- Understanding of numbness risk and chance pain returns
- Time off and help at home arranged (more for decompression)
- Plan for adjusting neuralgia medicines
- Eye protection if the eye area may be numb
- Painkillers at home
- Neurosurgery contact number for problems
Scars and how they heal
Microvascular decompression leaves a scar behind the ear, usually hidden in the hairline, where a small opening is made in the skull. The percutaneous procedures leave only a small puncture mark on the cheek, and stereotactic radiosurgery leaves no wound at all. After decompression there may be a small numb area around the scar.
⚠ Get urgent help if…
- Severe or worsening headache, neck stiffness, fever or drowsiness after decompression (possible meningitis — seek urgent help)
- Clear fluid leaking from the nose, ear or wound after decompression
- Sudden weakness, slurred speech, facial droop or vision change (possible stroke — call 999)
- A red, painful, dry eye on a numb side (risk of eye damage)
- Increasing redness, swelling, heat or discharge from the wound (possible infection)
- New constant facial pain in a numb area (possible anaesthesia dolorosa — tell your specialist)
Who to contact: your surgeon or clinic first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your surgeon gives you.
Results & realistic expectations
A good result means the facial pain is eased or stopped and medicines can often be reduced. After microvascular decompression relief is frequently immediate; after radiosurgery it builds over weeks to months. The percutaneous procedures usually relieve pain quickly but at the cost of some facial numbness.
No procedure can guarantee permanent relief. Pain can return over the years — after decompression, studies suggest it comes back in roughly 3 in 10 people within 10 to 20 years — and the less invasive procedures recur more often and sooner. If pain returns, medicines or a further procedure may be options.
Microvascular decompression tends to give the most durable relief, but it is not permanent for everyone; recurrence is recognised over long-term follow-up. The percutaneous procedures and radiosurgery more commonly need repeating because the pain returns. Because they can be repeated, and because needs change with age and health, the plan may evolve over time.
Combining with other procedures
These procedures are usually alternatives rather than things done together. People often continue or restart medicines around a procedure, and if one approach fails another may be offered. Your neurosurgeon will explain the sequence that makes sense for you.
Follow-up & long-term care
You will be followed up to check how well the pain is controlled, whether numbness has occurred, and how your medicines should be adjusted. After decompression, follow-up also checks wound healing and any hearing or balance effects. If pain returns, you should know who to contact to discuss further options.
- Keep taking neuralgia medicines as advised and adjust only with specialist guidance.
- Protect a numb eye and take care with hot food and drink on a numb side.
- Return if pain comes back or new symptoms develop, as further treatment may help.
- Attend dental and eye checks if part of the face is numb.
Revision and secondary surgery reality
- Pain can return after any procedure and may need medicines again or a repeat or different procedure.
- The less invasive procedures are more often repeated than decompression.
- Anaesthesia dolorosa, if it develops, is difficult to treat.
- Decisions about repeat treatment weigh the durability of relief against accumulating numbness and surgical risk.
Ask your surgeon for their own revision rate, what counts as a revision, and what is included in the written aftercare policy.
What good aftercare looks like
- A named neurosurgery contact for post-procedure problems.
- A clear plan for adjusting neuralgia medicines.
- Advice on protecting a numb eye and managing facial numbness.
- Follow-up to check pain control, numbness and, after decompression, hearing and wound healing.
- A route back into the service if the pain returns.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Which procedure is chosen (decompression versus percutaneous procedure versus radiosurgery)
- The neurosurgeon's fee and the complexity of the procedure
- Anaesthetic type and any anaesthetist fee
- Theatre or facility fee and length of hospital stay (longest for decompression)
- MRI and other imaging if not already done
- Follow-up appointments and the possibility of needing a repeat procedure
- The neurosurgeon's fee and which procedure it covers
- Anaesthetic fee if relevant
- Theatre or facility fee and any hospital stay
- Cost of MRI or other imaging if needed
- Follow-up appointments
- What happens — and what it costs — if the pain returns or a complication occurs
On the NHS? Surgery and procedures for trigeminal neuralgia are available on the NHS when the pain is not controlled by medicines; private care is used mainly for speed or choice.
You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Not explaining that numbness is expected after the nerve-damaging procedures.
- Presenting decompression as low-risk without naming stroke, hearing loss and rare death.
- Not discussing the chance the pain returns over the years.
- Failing to mention anaesthesia dolorosa as a rare but serious outcome.
- Recommending surgery before medicines have been properly tried.
Marketing red flags
- Promising a permanent cure for trigeminal neuralgia.
- Describing brain surgery (decompression) as low-risk or routine.
- Not mentioning facial numbness with the nerve-damaging procedures.
- Implying immediate relief from radiosurgery.
- No discussion of the surgeon's own results or complication rates.
Choosing a surgeon safely
- Check your surgeon is on the GMC Specialist Register for this area.
- Make sure they practise at a CQC-registered location, and look for membership of bodies like BAAPS or BAPRAS.
- You're entitled to a two-stage consent process with time to reflect (a cooling-off period). The surgeon who will operate must consent you — not a salesperson.
- Be wary of pressure: time-limited offers, discounts or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good surgeon will welcome every one of these.
- Has my diagnosis been confirmed, and has an MRI shown a blood vessel pressing on the nerve?
- Which procedure do you recommend for me, and why, given the trade-offs?
- What are your own results and complication rates for this procedure?
- How likely is facial numbness, and how likely is the pain to return over time?
- What happens, and what are my options, if the pain comes back?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the surgeon who carries out my operation, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this operation not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Which procedure works best?
Will the pain come back?
Will my face be numb afterwards?
How serious is the decompression operation?
How soon will radiosurgery work?
Do I have to have a procedure, or can I stay on medicines?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NHS — Trigeminal neuralgia: treatment Society of British Neurological Surgeons Microvascular decompression in trigeminal neuralgia — prospective study (PMC) Long-term outcome of microvascular decompression — NEJM (PubMed) Impact of microvascular decompression on pain management — clinical insights (PMC)
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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