Hyperhidrosis (sympathectomy) surgery

What is hyperhidrosis (sympathectomy) surgery?

Hyperhidrosis means sweating much more than the body needs to control temperature. It most often affects the hands, armpits, feet or face, and can be distressing and affect work and confidence.

Sympathectomy surgery, usually done as endoscopic (keyhole) thoracic sympathectomy, interrupts part of the sympathetic nerve chain inside the chest. These nerves control sweating in certain areas, so cutting or clipping them at specific levels usually reduces sweating, most reliably in the palms.

This operation is considered a last resort. Guidance is that it should only be considered when other treatments — such as strong antiperspirants, a treatment using a weak electric current (iontophoresis), tablets, or injections of botulinum toxin — have not worked or are not tolerated. It is not a first step.

The most important thing to understand is that surgery very commonly causes the body to sweat more elsewhere instead, known as compensatory sweating, which for some people becomes a worse problem than the original sweating. Because the nerve change is essentially permanent, this is a decision to make carefully and with full information.

Types & techniques

There isn't one single operation. The right approach depends on you — which is something to discuss with your surgeon.

Other treatments vs surgery

Surgery is the only essentially permanent option and the only one that commonly causes compensatory sweating. It is considered after the others.

Preparing for your surgery

• Make sure you have genuinely tried other treatments first, such as antiperspirants, iontophoresis, tablets and botulinum toxin injections.
• Ask for a clear, honest discussion of compensatory sweating and how likely and severe it could be for you.
• Tell the surgeon about any lung or chest problems, previous chest surgery, or heart conditions.
• List all your medicines, especially blood thinners, and ask whether any need stopping.
• Stop smoking beforehand if you can, as this helps your lungs and recovery.
• Arrange a lift home and some time off work, usually around a week.
• Be clear in your own mind about how much your sweating affects you, and weigh this against the permanent nature of the surgery.

What happens

The operation is done under general anaesthetic, so you are asleep. It is usually keyhole surgery: the surgeon makes small cuts in the side of the chest and uses a camera (thoracoscope) and fine instruments.

The lung on that side is partly deflated to give the surgeon space. The sympathetic nerve chain is found and interrupted — cut or clipped — at the levels chosen for the area you want to treat. The same is usually done on the other side, often in one operation. The lung is re-expanded and the small cuts are closed.

The whole operation often takes under an hour. Many people go home the same day or after a short stay. A chest X-ray may be done afterwards to check the lungs. You will usually notice your palms become drier soon after surgery.

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.

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.

Anaesthetic choices

The safest option depends on the operation, your health, the facility and your surgeon/anaesthetist. Ask what is planned and why.

The biggest and most important risk is compensatory sweating, which is very common and occasionally severe and disabling, and the nerve change is essentially permanent and not reliably reversible. Facial and blushing surgery carry particular risks such as Horner's syndrome. Be sure you have tried other treatments, and ask the surgeon directly how likely compensatory sweating is, how bad it can be, and what can be done if it happens.

Published figures to discuss

Compensatory sweating is reported very commonly after this surgery, but how it is defined and measured varies between studies, so figures range widely and an exact rate cannot be given reliably. How troublesome it is also varies from person to person. Most other serious complications are uncommon, but they vary by surgeon, technique and the area treated, so percentages are not stated here.

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

Physical recovery from the keyhole surgery is usually fairly quick, often around a week. The more important 'afterwards' is living with the results, including any compensatory sweating, which may take time to judge.

• Dry palms soon after surgery, if that was the target
• Some chest or shoulder discomfort for a few days
• Small healing wounds on the side of the chest
• Compensatory sweating elsewhere becoming noticeable in the first weeks
• Taking time to judge the overall result

Aftercare

• Take pain relief as advised and follow wound-care instructions.
• Watch for signs of a chest problem, such as breathlessness or increasing chest pain, and seek help if they occur.
• Build activity back up gradually over the first week or two as advised.
• Keep your follow-up appointment so your result and any side effects can be reviewed.
• Give the result time before judging it, as compensatory sweating may take weeks to settle.
• Tell your surgeon if compensatory sweating is troublesome, so options can be discussed.
• Avoid smoking, which helps your lungs and healing.

• Pain relief and wound-care instructions understood
• Someone to drive you home after the general anaesthetic
• Around a week off work arranged
• Follow-up appointment booked
• Clinic contact number for breathing or wound problems
• Clear expectations about compensatory sweating

Scars and how they heal

Keyhole surgery leaves a small number of short scars on the side of the chest, often partly hidden in skin creases or under the arm. They are usually small and fade over time, though, as with any surgery, the final appearance varies between people.

⚠ Get urgent help if…

• Increasing breathlessness or difficulty breathing after surgery
• Worsening chest pain, especially with breathing
• A high temperature, or increasing redness, swelling or discharge from a wound
• A fast or irregular heartbeat or feeling faint
• Coughing up blood
• Severe or disabling compensatory sweating — discuss this with your surgeon

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 is a marked, lasting reduction in sweating in the target area, most reliably the palms, without troublesome side effects. Many people who have tried everything else are pleased with drier hands.

However, the result cannot be separated from the risk of compensatory sweating, which is very common and for some people becomes a significant problem in its own right. Because the nerve change is essentially permanent, an unwanted result is hard to undo. Surgery should only be chosen after other treatments and with realistic expectations.

The reduction in sweating in the target area is usually long-lasting, because the nerve interruption is essentially permanent. The downside of that permanence is that compensatory sweating, if it occurs and is troublesome, also tends to persist, and the operation cannot be reliably reversed. This is why the decision needs careful thought rather than being seen as easily undone.

Combining with other procedures

Surgery for one area, such as the palms, does not treat sweating elsewhere, and some people still use other treatments, such as antiperspirants, iontophoresis or botulinum toxin, for other areas afterwards. These non-surgical options are generally tried first and remain useful alongside or instead of surgery.

Follow-up & long-term care

You will usually be reviewed after surgery to check your wounds and lungs and to discuss the result, including any compensatory sweating. If side effects are troublesome, the surgeon can discuss what, if anything, can be done. Any breathing difficulty or chest problem should be reported straight away rather than waiting for the appointment.

Revision and secondary surgery reality

• The operation cannot be reliably reversed, even when the nerve is clipped rather than cut.
• If compensatory sweating is troublesome, management is limited and there is no guaranteed fix.
• Some people still need other treatments for sweating in untreated areas.
• An unsatisfactory result is difficult to undo, which is why careful selection matters.

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 clear discussion of expected results and the likelihood of compensatory sweating before surgery.
• A named contact and clear instructions for breathing or wound problems.
• A follow-up to review the result and any side effects.
• Honest support and options if compensatory sweating becomes troublesome.
• Access to non-surgical treatments for any remaining or new areas of sweating.

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:

• The surgeon's fee and whether one or both sides are treated
• General anaesthetic and anaesthetist's fee
• Theatre or facility costs and any hospital stay
• Tests beforehand and a chest X-ray afterwards
• Follow-up appointments
• Treatment of any complications, such as a lung problem
• Any further treatment if compensatory sweating needs managing

• The surgeon's fee and whether both sides are included
• The anaesthetist's fee and the facility fee
• Any pre-operative tests and the post-operative chest X-ray
• Follow-up appointments
• Cancellation policy
• What happens, and what it costs, if a complication such as a lung problem occurs
• What support is offered if compensatory sweating becomes troublesome

On the NHS? Sympathectomy for sweating is a last-resort treatment and is often not routinely funded on the NHS, so it is frequently sought privately; other treatments are normally tried first.

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.

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.

How Vuemedics verifies every consultant →

Take this to your consultation. A good surgeon will welcome every one of these.

• Have I genuinely tried all the other treatments, and could any still help?
• How likely am I to get compensatory sweating, and how bad could it be?
• Is the procedure essentially permanent, and what happens if I am unhappy with the result?
• What are the specific risks for the area I want treated, including Horner's syndrome for facial surgery?
• What results do you see for sweating like mine, and what are realistic expectations?
• What can be done if compensatory sweating becomes a problem?
• 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?

Find a verified surgeon for hyperhidrosis (sympathectomy) surgery

Every consultant is GMC-checked and independently reviewed. Search by postcode and distance, or switch to a map. Ordered by rating, relevance and recency — never by who pays.

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 — Excessive sweating (hyperhidrosis) NHS inform — Excessive sweating (hyperhidrosis) Cheshire and Merseyside ICB — Hyperhidrosis surgical management policy (PDF) Sheffield Teaching Hospitals NHS — Hyperhidrosis and thoracoscopic sympathectomy (PDF) PMC — Endoscopic thoracic sympathectomy: technique and results

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.