Hyperhidrosis Surgery
ETS for Excessive Sweating of the Hands, Face & Armpits, London

Primary hyperhidrosis is sweating far beyond what the body needs to control temperature, driven by an overactive sympathetic nervous system rather than by any underlying illness. It affects roughly 3 per cent of adults (Strutton et al., J Am Acad Dermatol), usually begins in childhood or adolescence, and most often comes to surgical attention between the ages of 20 and 40. For many people it is not a cosmetic nuisance but a daily constraint — on handshakes, on holding paper or a phone, on the work they can do and the confidence they bring to it.

The sympathetic nerve chain runs down each side of the spine, just inside the back of the chest. Specific levels of that chain control sweating in the hands and face. Endoscopic thoracic sympathectomy (ETS) is a keyhole operation that reaches the chain through the chest and interrupts it by dividing it — a sympathectomy — at the level that controls the area being treated, which differs for the hands, the face and the underarms. Because the signal driving the sweating is switched off directly at source, the effect is immediate: most people wake from surgery with dry hands for the first time they can remember.

It is carried out under general anaesthesia through a single small incision on each side of the chest. The operation does not touch the sweat glands themselves; it changes the nerve message that tells them to work. That is why it is so reliable for the hands and face, and also why it carries the particular trade-off — compensatory sweating — discussed in detail below.

The International Hyperhidrosis Society draws the key distinction simply: primary (focal) hyperhidrosis is excessive, broadly symmetrical sweating not explained by another condition, whereas secondary hyperhidrosis has an underlying medical cause. Surgery is appropriate only for the primary form, and only once non-surgical measures have been given a fair trial.

Two further points Dr Okiror makes explicitly. First, in selected patients — where the pattern is not cleanly localised, a secondary cause has been excluded and conservative measures have been tried — he may operate on one side first, to judge the relief and the degree of compensatory sweating before deciding whether to treat the second side; it is a considered option, not a routine one. The argument for it is compensatory sweating: one comparison of 126 one-stage bilateral against 135 two-stage unilateral procedures followed for a mean of 7.2 years found compensatory sweating in 21.4 per cent of the one-stage group against 4.4 per cent of the two-stage group (Menna et al., Ann Cardiothorac Surg 2016). The costs are two operations, two anaesthetics and two recoveries rather than one. Second, ETS treats the hands, face and underarms but not the feet: he does not offer the separate lumbar operation sometimes used for foot sweating, which is managed non-surgically.

ETS does not treat every pattern of sweating equally well, and being honest about that is part of a proper assessment rather than a sales pitch. The forms commonly considered are:

• →Palmar (hands) — the form ETS treats most reliably, with published success above 95 per cent and an immediate, lasting result.
• →Facial sweating — responds well when the face is the dominant problem, with published success around 83 per cent — good, but below the figure for the hands.
• →Facial blushing — a separate indication from facial sweating, with a different evidence base and materially lower published success. It has its own page: facial blushing and flushing →
• →Axillary (armpits) — responds less reliably than the hands. For isolated armpit sweating, other treatments are usually tried first.
• →Combined palmar and axillary — treated together where the hands are the dominant complaint and the armpits secondary.

The reason for the difference is anatomical. Sweating of the hands and face is tightly governed by the levels of the sympathetic chain that ETS targets, so interrupting them produces a clean, predictable result. Armpit sweating is driven by a broader and more variable set of nerve inputs, so the response is less consistent — which is why, for armpit-only hyperhidrosis, Botox, strong topical treatments or targeted local procedures are often the better first step. Where the hands and face are the problem, ETS is usually the most definitive option available.

Referrals are accepted from GPs, dermatologists, and directly from patients. Excessive sweating symptom page →

The single biggest determinant of a good outcome is choosing the right patient, so the consultation is built around that question rather than around persuading anyone towards an operation. ETS suits people with primary hyperhidrosis — broadly symmetrical, focal sweating of the hands or face, present for years, not caused by another condition — whose daily life is genuinely affected and who have already tried the non-surgical options without enough benefit.

It is important first to be confident the problem is primary and not secondary. Features that point towards a secondary cause — and away from surgery — include sweating that began after the age of about 25, that is markedly one-sided, that occurs mainly at night, that affects the whole body rather than focal areas, or that comes with unexplained weight loss, fevers or palpitations. Where any of these are present, the right step is assessment of the underlying cause, often with dermatology or endocrinology input, not a sympathectomy.

ETS is generally not the right first move for sweating that is confined to the armpits, for generalised whole-body sweating, or where the dominant issue is anxiety rather than a focal sweating disorder. The aim of the consultation is to work out honestly whether you sit in the group that does very well — predominantly hand or facial hyperhidrosis — and, just as importantly, to say so plainly when you do not.

Surgery sits at the top of a stepwise pathway. The British Association of Dermatologists recommends working through the simpler, reversible measures first, and most people will have done so before surgery is even discussed:

• →Antiperspirants (aluminium-chloride preparations) — first-line and effective for milder cases, though they can irritate the skin.
• →Iontophoresis — passing a small electrical current through water; helpful for palmar sweating but requiring regular, repeated home sessions to maintain the effect.
• →Botulinum toxin (Botox) — injections that work well, particularly for the armpits, but the effect lasts only about 4 to 6 months and must be repeated indefinitely.
• →Oral medication (anticholinergics) — sometimes used, but limited by side effects such as a dry mouth.
• →ETS surgery — considered when these have been tried and found insufficient; its appeal is that it is immediate and one-time rather than repeated.

The trade-off between these is worth stating clearly. The non-surgical options are reversible and carry no surgical risk, but they need ongoing effort or repeat treatment and may never fully control the problem. ETS is permanent and one-off, with the most complete result for the hands and face — but it is permanent in both directions, which is why the compensatory-sweating trade below has to be weighed honestly before it is chosen. There is no single right answer; there is only the right answer for a particular person’s pattern, priorities and tolerance for that trade.

ETS is a short keyhole operation, usually 30 to 45 minutes in total, under general anaesthesia. Dr Okiror uses a single small incision on each side of the chest — a single-port approach — through which a fine camera and instruments reach the sympathetic chain, which is then interrupted at the level appropriate to your symptoms. He performs the operation both thoracoscopically and robotically, using the approach best suited to the individual case. Both sides are usually treated in the same operation unless the procedure is being staged.

Two features make recovery easier than people often expect of chest surgery. First, no chest drain is left in afterwards — for many patients the drain is the most uncomfortable and restricting part of conventional chest operations, and avoiding it makes a real difference to the first day or two. Second, most people stay just one night. That overnight stay is there specifically to make sure pain is properly controlled before you go home, not because the operation itself is major.

The incisions are small and settle to fine, well-hidden scars. Because a general anaesthetic is used, you will need someone to take you home and stay with you on the first night, and you should not drive or make important decisions for 24 hours afterwards.

The effect on the hands is immediate. Most people return to desk work within 3 to 5 days, resume driving within a week or two once comfortable and no longer taking strong painkillers, and return to light physical activity within 1 to 2 weeks. Heavier lifting and manual work usually wait 3 to 4 weeks. A follow-up review confirms the result and checks the wounds are healing well.

Dr Okiror performs ETS at both London Bridge Hospital and The Lister Hospital in Chelsea. For patients in Chelsea and west London the whole pathway — consultation, surgery and follow-up — can stay at The Lister, without travelling across London.

This is the part of the conversation that matters most, and the one some pages gloss over. ETS very reliably removes sweating from the hands and face. In exchange, the body tends to sweat a little more elsewhere — most often the trunk, back, abdomen or thighs — a phenomenon called compensatory sweating. It happens because the body’s overall sweating is partly redistributed once the hand and facial pathways are switched off.

Some degree of it occurs in most patients; published surgical series report figures across a wide range, and the largest long-term study found compensatory sweating in 80 per cent of patients at a mean of 14.6 years (Smidfelt & Drott, Br J Surg 2011; PMID 21928403). For the great majority it is mild — a bit more sweating on the back or chest in hot weather or with exertion — and an easy trade for permanently dry hands. For a small minority it is heavy enough to be a genuine nuisance in its own right. A less common variant is gustatory sweating, a little facial sweating prompted by certain foods. The important point is that compensatory sweating, once it develops, cannot be reversed.

In day-to-day terms, most people barely change their wardrobe; a minority find they prefer looser or darker tops in summer; and a small number would say the compensatory sweating is the main downside of having had the operation. Knowing which group you are likely to fall into is not perfectly predictable, which is exactly why the discussion happens up front rather than afterwards.

So the honest framing is not “a 95 per cent cure” but a trade: near-certain, permanent relief of the hand and facial sweating, weighed against a change in where the body sweats. The operation almost always works for the hands. The real question the consultation answers is whether that trade is the right one for you — and that decision is made together, with realistic expectations set before anything is agreed.

Beyond compensatory sweating, which is covered above as the main trade-off, ETS is a low-risk operation in experienced hands — but no surgery is risk-free, and the educated patient deserves the full picture.

• →Pneumothorax (a small amount of air around the lung) — usually settles by itself; occasionally needs a temporary drain.
• →Bleeding or infection — uncommon, and minor when they occur. Serious bleeding from injury to a major vessel in the chest is very rare, but it is reported in the literature and is not omitted here simply because it is rare.
• →Horner’s syndrome (a droopy eyelid from irritation of nearby nerves) — rare, and minimised by operating at the correct level.
• →Gustatory sweating — food-triggered facial sweating, uncommon and usually mild.
• →Harlequin face — flushing on one side of the face only, producing a visible difference between the two sides. Uncommon, and specific to surgery in this region.
• →General anaesthetic risks — low in fit patients, discussed individually before surgery.

These complications are infrequent, and serious problems rare. The decision to proceed rests far more on the compensatory-sweating trade than on these surgical risks — but all of them are set out plainly at consultation, so the choice you make is a fully informed one.

For the right patient, the long-term picture is reassuring — but the figures differ by indication and are worth separating. The largest long-term study followed 3,015 patients for a mean of 14.6 years and reported a lasting effect in 95.6 per cent for palmar hyperhidrosis, 83 per cent for facial hyperhidrosis, 68.9 per cent for axillary hyperhidrosis and 72.8 per cent for facial blushing. Satisfaction followed the same order: 86.6 per cent for palmar disease, 73.5 per cent for blushing (Smidfelt & Drott, Br J Surg 2011; PMID 21928403).

Where outcomes are measured formally — for example with the Hyperhidrosis Disease Severity Scale, a simple validated measure of how much sweating interferes with daily life — most patients move from the severe end of the scale to little or no interference. In ordinary language, that is the difference between planning your day around your hands and not thinking about them at all: shaking hands, holding paper, using a phone or keyboard, wearing what you like.

Regret should be stated alongside satisfaction. In that same study 6.5 per cent were dissatisfied and 13.5 per cent regretted having had the operation — a figure that had risen from 7.8 per cent at an earlier survey of the same cohort, which is why long follow-up matters. Satisfaction tracks closely with two things, and both are within the surgeon’s control: selecting patients whose dominant problem is the hands or face, and setting honest expectations about compensatory sweating beforehand. The small group who regret the operation are almost always those for whom one of those two was not got right. Done carefully, ETS is one of the few interventions in this field that most people describe, years later, as having changed everyday life.

The pathway is deliberately quick and clear, and built so that surgery is only ever reached after the alternatives and the trade-offs have been properly weighed:

• →Referral or self-referral — from a GP, a dermatologist, or directly. Appointments are usually available within 2 to 3 days, at London Bridge Hospital or The Lister Hospital Chelsea.
• →Consultation — confirming primary hyperhidrosis, excluding a secondary cause, reviewing what has already been tried, and an honest discussion of benefit versus compensatory sweating.
• →Decision and surgery — only if the trade is right for you; the operation itself is a short admission with one night in hospital.
• →Follow-up — a review after surgery to confirm the result and check the wounds, with your GP and dermatologist kept informed.

At no point is there pressure to proceed. Many people leave the first consultation having decided that a non-surgical route suits them better, and that is a perfectly good outcome.

ETS for primary hyperhidrosis is covered by the major insurers, subject to the terms of your individual policy. Recognised by BUPA, AXA Health, Aviva, WPA, Cigna and BUPA International. Self-funding patients are also welcome, with transparent quotes provided in advance so there are no surprises.

To confirm your specific cover and any pre-authorisation your insurer requires, contact Jo Mitchelson, PA, on 020 7952 2882 or pa@lungsurgeon.co.uk.