

Surgery for excessive sweating, medically known as hyperhidrosis surgery, is a treatment option that may be considered in selected patients whose daily life is severely affected and who do not obtain sufficient benefit from non-surgical treatments.
The best-known surgical method for excessive sweating is endoscopic thoracic sympathectomy or endoscopic thoracic sympathicotomy, commonly referred to as ETS surgery. In this operation, the sympathetic nerve chain is reached through the chest cavity, and the nerve transmission responsible for sweating is interrupted at selected levels by cutting, burning, removing, or clipping the nerve.
Surgery for excessive sweating is most commonly considered for hand sweating. In some patients, it may also be evaluated for underarm sweating, facial and head sweating, or facial blushing. However, success rates, patient satisfaction, and side effect risks are not the same for every region.
The operation does not directly remove the sweat glands. In ETS surgery, the aim is to reduce the sympathetic nerve signal reaching the sweat glands. Therefore, sweating in the treated area may decrease or stop very quickly.
However, surgery for excessive sweating should not be considered a simple procedure. One of the most important concerns is compensatory sweating. Compensatory sweating means that sweating decreases in the target area, such as the hands or face, while sweating increases in other areas such as the back, chest, abdomen, waist, groin, or legs.
For this reason, surgery for excessive sweating is generally considered a last-line treatment. Before surgery, the patient should be informed in detail about other treatment options, expected benefits, permanent changes, the risk of compensatory sweating, and the possibility that reversal may be limited.
Excessive sweating is the production of more sweat than the body needs for temperature regulation. Its medical name is hyperhidrosis.
Normal sweating occurs during hot weather, exercise, fever, stress, and excitement to help regulate body temperature. In hyperhidrosis, sweating may be intense even when the body does not need to cool down.
Excessive sweating may occur in the:
Primary hyperhidrosis usually occurs without being caused by another disease. It often begins during childhood, adolescence, or young adulthood. It may affect specific areas such as the hands, feet, underarms, or face. It is usually bilateral and symmetrical. It decreases or stops during sleep.
Secondary hyperhidrosis develops due to another disease, medication, hormonal change, or metabolic problem. Secondary causes should be investigated when sweating begins suddenly, continues at night, affects the whole body, or occurs together with symptoms such as fever, weight loss, or palpitations.
Surgery for excessive sweating is not suitable for every patient with hyperhidrosis. It is generally considered in selected patients whose quality of life is severely affected and who have not achieved sufficient results from non-surgical treatments.
Surgery may be considered when:
The decision for surgery is not based only on the complaint of “I sweat too much.” The type, severity, and location of sweating, previous treatments, patient expectations, occupation, and acceptance of possible postoperative side effects are evaluated together.
Surgery for excessive sweating generally provides the best results in hand sweating. After ETS surgery for hand sweating, sweating in the palms may decrease or stop quickly in many patients.
Surgery may also be considered in some patients for:
However, the balance between success and risk differs by region.
Success rates may be high in hand sweating. In underarm sweating, outcomes may be more variable, and local treatments may be more suitable for some patients. In facial and head sweating, the risk of compensatory sweating and patient satisfaction should be evaluated more carefully.
ETS should not be considered a direct and reliable treatment for foot sweating. In some patients, foot sweating may decrease after surgery for hand sweating. In others, it may remain unchanged or continue. Surgical procedures such as lumbar sympathectomy may be discussed for foot sweating in selected cases, but these are more specialised operations with separate risks.
Yes. The classic and most commonly considered indication for ETS surgery is primary hand sweating.
Hand sweating is called palmar hyperhidrosis. When severe, it may significantly affect daily life.
People with hand sweating may:
ETS surgery targets sympathetic nerve stimulation in hand sweating and may rapidly reduce sweating in the palms. However, this strong effect must be evaluated together with the risk of compensatory sweating.
Surgery or surgery-adjacent procedures may be considered in some patients with underarm sweating. However, surgery is usually not the first option for axillary hyperhidrosis.
Treatment options for underarm sweating may include:
ETS may be performed for underarm sweating, but careful patient selection is necessary because of the risk of compensatory sweating. In addition, local methods may be more targeted when sweating is limited only to the underarms.
Local removal, scraping, or energy-based reduction of underarm sweat glands is different from ETS. These procedures directly target the underarm area. ETS, on the other hand, is an operation on the sympathetic nerve chain inside the chest cavity.
Facial and head sweating may be described as craniofacial hyperhidrosis. In some patients, facial blushing may accompany facial sweating.
ETS surgery may be considered in selected patients with facial and head sweating. However, the decision for surgery in this region should be made more carefully than in hand sweating.
This is because sympathetic surgery for facial and head sweating may involve:
Before surgery is considered in a patient with facial sweating, the cause of sweating should be evaluated in detail. Menopause, thyroid disease, low blood sugar, medication side effects, rosacea, social anxiety, and neurological conditions should be distinguished.
Foot sweating is called plantar hyperhidrosis. ETS surgery is not a direct target treatment for foot sweating.
Because ETS targets the sympathetic nerve chain in the chest cavity, its clearest effect is on the upper limbs and some upper body areas. Foot sweating is associated with lower sympathetic nerve pathways.
In some patients, foot sweating may partially decrease after ETS performed for hand sweating. However, this result is not guaranteed.
For foot sweating, the following are usually evaluated first:
Different surgical procedures aimed at foot sweating, such as lumbar sympathectomy, may be discussed in special cases. However, these operations carry different risks and are not considered routine first-line treatments.
The best-known surgery for excessive sweating is endoscopic thoracic sympathectomy or sympathicotomy.
The surgery is performed under general anaesthesia. The patient is asleep, and breathing is controlled by the anaesthesia team throughout the procedure.
The general steps can be summarised as follows:
The technique used may vary according to the surgeon’s preference, the sweating area, and the approach of the medical centre.
ETS stands for endoscopic thoracic sympathectomy.
Endoscopic means that the operation is performed through small incisions with the help of a camera. Thoracic refers to the chest cavity. Sympathectomy means intervention on the sympathetic nerve chain.
The aim of ETS surgery is to prevent the sympathetic nerve signal that controls sweating from reaching the target area.
This procedure may be performed in different ways:
These techniques are not identical. Clipping is sometimes presented as a reversible method, but in practice, complete reversal cannot be guaranteed. Nerve damage, adhesions, permanent changes over time, or persistent compensatory sweating may occur.
For this reason, simplified explanations such as “a clip is placed, and if you do not like the result, it is removed” may be incomplete and misleading.
Sympathectomy may refer to the removal or permanent elimination of a specific part of the sympathetic nerve chain.
Sympathicotomy refers to cutting the nerve chain or interrupting transmission.
In daily use, these terms may sometimes be used interchangeably. However, technically, there may be differences.
In the surgical report and planning, the important points are:
These details may affect postoperative effectiveness and the risk of side effects.
In ETS surgery, the level at which the sympathetic nerve chain is interrupted is planned according to the area of sweating.
In modern surgical descriptions, it is considered clearer and more standard to use rib levels rather than nerve levels. For example, terms such as R2, R3, and R4 refer to rib levels.
In general:
These levels are not automatically applied to every patient. The surgical plan is determined according to the patient’s complaint, the surgeon’s approach, and the risk-benefit assessment.
Intervention at a higher level may provide a drier result but may increase the risk of side effects. Intervention at lower levels may leave the hands slightly moist rather than completely dry in some patients, but the risk of compensatory sweating may be lower.
ETS surgery generally aims to provide a permanent effect. When sympathetic nerve transmission is interrupted, sweating in the target area may decrease or stop for a long period.
However, the word “permanent” is important in two ways.
First, sweating in the target area may decrease for a long time. In hand sweating especially, rapid and clear dryness may be seen after surgery.
Second, side effects may also be permanent. Compensatory sweating, excessive dryness, changes in reflex sweating, or rare nervous system effects may continue for a long time.
For this reason, the permanence of surgery should not be presented only as an advantage. The search for a permanent result also includes the possibility of permanent side effects.
After ETS surgery for hand sweating, palm sweating may decrease immediately in many patients. The patient may notice dry hands upon waking.
The response in underarm, facial, or head sweating may be more variable. Some patients experience a clear reduction, while others achieve only partial relief.
During the first days after surgery, different sweating sensations may occur as the body adapts to the new condition. Compensatory sweating may become noticeable early, or it may become more apparent over weeks or months.
Correct patient selection is very important for surgery.
More suitable candidates generally include:
If education, work, social relationships, and daily functions are seriously affected by hand sweating, surgery may become a more meaningful option.
However, surgery is usually not appropriate for mild dampness, intermittent stress sweating, or cosmetic discomfort alone.
Surgery for excessive sweating may not be suitable for some patients.
Surgery should be carefully evaluated or may not be recommended when:
In secondary sweating especially, nerve surgery does not solve the main problem. Thyroid disease, infection, medication side effects, or hormonal causes should be evaluated first.
Before surgery, both the type of hyperhidrosis and the patient’s suitability for surgery are evaluated.
The assessment may include:
This evaluation is performed not only to determine whether surgery can technically be done, but also to understand whether surgery is truly the correct option.
Some tests may be requested as part of general surgical preparation.
These may vary according to the patient’s age, health status, and anaesthesia assessment.
Possible evaluations include:
If sweating is thought to be secondary, thyroid function tests, infection tests, or other investigations may also be requested.
The aim of preoperative tests is both to plan surgery safely and to evaluate whether sweating may be caused by a non-surgical underlying condition.
Surgery is generally not a first-line treatment. In most patients, non-surgical options are evaluated first.
Treatments that may be tried include:
However, not every treatment must be tried in the same order for every patient. For example, in a patient with severe hand sweating who has tried several methods for years and whose quality of life is seriously affected, surgery may be considered earlier.
Still, before a surgical decision is made, non-surgical options should be known and discussed comparatively with the patient.
The duration of surgery varies according to the patient’s anatomy, whether the procedure is unilateral or bilateral, the surgical technique, and whether there are adhesions inside the chest.
ETS surgery can often be performed as a relatively short minimally invasive procedure. However, duration varies from person to person.
Factors that may prolong surgery include:
The surgeon and anaesthesia team should provide time estimates after individual evaluation.
ETS surgery is usually performed using a minimally invasive, endoscopic technique.
Small incisions are made on the side of the chest wall. A camera and surgical instruments are inserted through these incisions. A large open incision is not required in most patients.
Possible advantages of the closed method include:
However, a closed method is still surgery. General anaesthesia, entry into the chest cavity, temporary lung deflation, bleeding, and pneumothorax risks are not completely eliminated.
During ETS surgery, the lung on the operated side may be temporarily deflated or reduced in size to create a working space in the chest cavity.
This is performed under the control of the anaesthesia team. At the end of surgery, the lung is re-expanded, and the chest cavity is checked for air leak or air accumulation around the lung.
A short-term drain may be needed in some patients after surgery. In others, a drain may not be placed.
Lung-related risks are uncommon but important. Pneumothorax, air leak, incomplete lung expansion, or chest pain may require follow-up.
Primary hand sweating is usually bilateral, so ETS surgery is often planned on both sides. However, in some situations, a unilateral or staged approach may be discussed.
The advantage of bilateral surgery is that both hands may improve at the same time. However, bilateral intervention may have a greater effect in terms of compensatory sweating and body balance.
A unilateral or staged approach may be considered in some patients to assess side effect risk. However, this is not standard for everyone.
The decision is made according to the patient’s sweating pattern, the surgeon’s experience, expected benefit, and risk assessment.
In some ETS operations, the sympathetic chain may be compressed with clips instead of being cut. The aim is to stop nerve transmission.
Clipping is sometimes described as a method with potential reversibility. However, clip removal does not always mean that sweating will return to its previous state or that side effects will fully disappear.
This is because:
For this reason, clipping should not be regarded as a completely reversible procedure. The patient should be clearly informed about this.
Compensatory sweating is increased sweating in other parts of the body after sweating decreases in the target area following surgery.
It may most commonly occur in the:
In some patients, it is mild and not disturbing. In others, it may seriously affect daily life.
Compensatory sweating may increase in hot weather, during exercise, with stress, or after meals.
This side effect is one of the most important and most necessary risks to discuss before ETS surgery. The target area may improve, but the patient may experience more disturbing sweating elsewhere.
Compensatory sweating may occur in different degrees after surgery. Some patients experience it mildly and acceptably, while others may be severely affected.
The risk of compensatory sweating may vary according to:
The risk may be lower with lower-level interventions for hand sweating. When higher levels are treated for facial and head sweating, the risk of compensatory sweating may be higher.
However, no technique reduces the risk of compensatory sweating to zero.
It is not possible to know with certainty who will develop compensatory sweating, how severe it will be, or which areas will be affected.
Some risk factors may provide clues. For example, higher-level interventions, surgery for facial and head sweating, or wider sympathetic chain procedures may be associated with higher risk.
However, two patients who undergo the same technique may have very different outcomes. One may experience mild compensatory sweating, while the other may be affected more severely.
Because of this uncertainty, the patient should be informed not only about success rates but also about unpredictable side effects before surgery.
Treatment of compensatory sweating may be difficult.
In mild cases, lifestyle adjustments may be sufficient. In more significant cases, the following options may be considered:
However, severe compensatory sweating may not always be fully corrected.
Clip removal may be considered in some patients. However, this does not guarantee that compensatory sweating will resolve.
For this reason, compensatory sweating is the most important topic to discuss in detail before surgery. Hearing “I did not know this” after surgery is one of the worst possible scenarios.
In addition to compensatory sweating, ETS surgery carries surgical and anaesthesia-related risks.
Possible risks include:
The likelihood of these risks varies from person to person. The surgeon’s experience, the level treated, the patient’s anatomy, and general health may influence risk.
Horner syndrome is a rare but important complication that may occur when sympathetic nerve pathways to the face and eye are affected.
Symptoms may include:
This risk becomes important when working close to higher sympathetic levels during ETS surgery. Today, careful level selection and surgical technique aim to reduce this risk.
Horner syndrome may be temporary or permanent. It should therefore be included in preoperative counselling.
Many patients with hand sweating want their hands to be dry after surgery. However, excessively dry hands may cause discomfort in some people.
Excessive dryness may cause:
For some patients, dry hands provide major relief. Others may feel uncomfortable because the hands feel too dry or somewhat numb.
Therefore, surgical planning should not aim only for maximum dryness, but for a balanced result that improves patient satisfaction.
After ETS performed for hand sweating, foot sweating may decrease in some patients. However, this is not the expected or guaranteed main target.
Foot sweating may:
A patient with severe foot sweating should not be told with certainty, “Have hand surgery and your feet will also improve.”
Foot sweating requires separate evaluation. Iontophoresis, antiperspirants, botulinum toxin, oral medications, and treatment of skin diseases are usually evaluated first.
After ETS surgery, sweating in the target area decreases for a long time in many patients. However, sweating may partially return in some cases.
Possible reasons for recurrence include:
The response may be stronger and more permanent in hand sweating, while results in underarm or facial sweating may be more variable.
If sweating returns, repeat surgery is not always a simple option. The cause should first be evaluated.
The length of hospital stay after ETS surgery depends on the patient’s condition, centre protocol, course of surgery, and whether a drain is required.
Some patients may be discharged on the same day or the next day. Others may need longer observation for pain control, lung monitoring, or drain management.
Before discharge, the following are usually assessed:
Because ETS is performed using a closed method, recovery may be faster than with open surgery in many patients.
After surgery:
Return to daily life varies from person to person. Returning to a desk job may be possible sooner, while people who perform heavy physical work may need more time.
Pain may occur after ETS surgery. It is usually felt at the incision sites on the side of the chest, in the back, or in the shoulder area.
Possible causes of pain include:
Pain can usually be controlled with medication. However, severe or increasing pain, especially if accompanied by shortness of breath, or marked one-sided chest pain should be evaluated.
Return to work depends on the nature of the job.
A person with a desk job may return sooner. More time may be needed for jobs involving heavy lifting, intense physical activity, prolonged standing, or strain on the chest area.
Factors considered before returning to work include:
The patient should not rush independently. Follow-up is needed especially if chest pain or shortness of breath is present.
Return to exercise after surgery should be planned according to the doctor’s recommendation.
Heavy exercise, weightlifting, running, swimming, or activities that strain the chest area may be restricted in the early period.
Light walking may be beneficial early in many patients. However, for intense exercise, wound healing, pain status, and complete lung recovery should be confirmed.
Athletes and people who perform heavy physical activity should discuss this with the surgeon before surgery.
Postoperative instructions from the doctor should be followed.
General points include:
After surgery, not only whether the hands are dry but also the body’s overall response should be monitored.
The most important point for the patient to understand before surgery is that ETS is a powerful treatment with limited reversibility.
The patient should clearly understand that:
This counselling should be realistic. Surgery should not be presented as simple, definite, or risk-free.
Expectations should be realistic before surgery.
Realistic expectations include:
The patient should imagine not only dry hands after surgery, but also possible sweating of the back and trunk. The decision should be made based on this balance.
Many treatment options may be considered before or instead of surgery.
Antiperspirants containing aluminium salts may temporarily block sweat ducts and reduce the amount of sweat reaching the skin.
They may be tried in mild and moderate underarm, hand, or foot sweating. They may cause skin irritation.
Iontophoresis is a needle-free method used especially for hand and foot sweating. The hands or feet are placed in water-filled trays and a low electrical current is applied.
It requires initial and maintenance sessions. With regular use, it may reduce sweating in many patients.
Botulinum toxin temporarily reduces the nerve signal reaching the sweat glands.
It may be a strong local option for underarm sweating. It may also be used for hand sweating, but injection pain and temporary muscle weakness are possible.
Anticholinergic medications and, in selected cases, other oral medications may reduce sweating.
They may be useful in sweating affecting several areas. However, they may cause side effects such as dry mouth, constipation, blurred vision, difficulty urinating, and heat intolerance.
Microwave thermolysis is a method that targets sweat glands with energy in underarm sweating. It may aim for a longer-lasting effect. However, cost, swelling, tenderness, numbness, and rare nerve pain should be considered.
Local procedures aimed at removing, scraping, or reducing underarm sweat glands may be considered in some patients.
These procedures are different from ETS. They directly target the underarm area. They may involve risks such as scarring, skin irregularity, infection, and sensory changes.
Botox and ETS surgery work through different mechanisms.
Botox:
ETS surgery:
Botox is a more temporary and local option, while ETS is a more permanent option with more serious risks.
Iontophoresis and ETS may especially be compared in hand sweating.
Iontophoresis:
ETS surgery:
Patients who achieve good control with regular iontophoresis may not need surgery.
Oral medications are systemic treatments. They may affect sweating in more than one area. However, they may cause side effects in other body systems.
Oral medications:
ETS surgery:
If medication side effects cannot be tolerated or the effect is insufficient, surgical options may be discussed. However, failed medication treatment does not automatically mean surgery is required.
Surgery for excessive sweating can be performed in experienced centres with appropriate patient selection. However, it is not risk-free.
Safety is influenced by:
Even if the operation is technically short and performed using a closed method, its effects should not be seen as a simple skin procedure because the sympathetic nervous system is being treated.
A person with excessive sweating may first be evaluated by dermatology, family medicine, or internal medicine.
After determining whether sweating is primary or secondary, a treatment plan is made.
If surgery is being considered, evaluation is performed by a thoracic surgeon. ETS surgery belongs to the field of thoracic surgery because the sympathetic nerve is reached through the chest cavity.
If secondary causes are suspected, relevant specialties may be involved:
Choosing the correct specialty reduces the risk of unnecessary surgery.
Medical evaluation is appropriate when:
When sweating begins suddenly, continues at night, or occurs with systemic symptoms, underlying causes should be investigated before surgery.
Surgery for excessive sweating is a surgical treatment that may be considered in primary hyperhidrosis that seriously affects daily life, especially in hand sweating. The best-known method is ETS surgery, which stands for endoscopic thoracic sympathectomy or sympathicotomy.
In ETS surgery, the sympathetic nerve chain is reached through the chest cavity, and nerve transmission controlling sweating is interrupted at selected levels. This operation may provide rapid and clear dryness, particularly in hand sweating.
However, surgery is not simple or risk-free. The most important concern is compensatory sweating. Sweating may decrease in the target area while increasing in other areas such as the back, chest, abdomen, waist, groin, or legs. This may be mild in some patients but may seriously affect quality of life in others.
The effect of surgery may be permanent. However, side effects may also be permanent. Even with clipping techniques, complete reversal is not guaranteed. For this reason, patients must be informed in detail before deciding on surgery.
Surgery for excessive sweating should generally be considered in suitable patients with significant primary hand sweating, serious quality-of-life impairment, insufficient response to non-surgical treatments, and acceptance of the risk of compensatory sweating.
When sweating begins suddenly, continues at night, affects the whole body, or occurs with fever, weight loss, or palpitations, secondary causes should be investigated first.
The most appropriate treatment should be planned individually according to the location, severity, and cause of sweating, previous treatments, patient expectations, and willingness to accept risks.
Surgery for excessive sweating includes surgical procedures targeting the sympathetic nervous system or sweat glands in the treatment of hyperhidrosis. The best-known method is ETS surgery. In ETS, the sympathetic nerve chain is reached through the chest cavity.
ETS stands for endoscopic thoracic sympathectomy. It is a procedure in which the sympathetic nerve chain controlling sweating is cut, burned, removed, or clipped at selected levels through the chest cavity using a camera.
Surgery is most commonly considered for severe primary hand sweating. It may provide rapid and clear results in hand sweating. Patient selection should be more careful for underarm, facial, and head sweating.
ETS surgery generally aims for a permanent or long-lasting effect. However, this is important not only for benefit but also for possible side effects. Side effects such as compensatory sweating may continue for a long time.
Compensatory sweating is increased sweating in areas such as the back, chest, abdomen, waist, groin, or legs after sweating decreases in the target area. It is one of the most important risks of ETS surgery.
Yes. Sweating may increase in other areas. This may be mild, but in some patients it may be severe and disturbing. This risk must be discussed in detail before surgery.
ETS surgery is not a directly reliable treatment for foot sweating. Foot sweating may decrease after hand surgery in some patients, but this is not guaranteed. Foot sweating should be evaluated separately.
As with any operation, it carries risks. Bleeding, infection, pneumothorax, chest pain, Horner syndrome, compensatory sweating, excessive dryness, and anaesthesia-related risks may occur. Proper patient selection is important.
This depends on the patient. Botox is non-surgical and temporary. ETS aims for a more permanent effect but carries surgical risks and the risk of compensatory sweating. No single method is better for everyone.
If surgical treatment is being considered, evaluation is performed by a thoracic surgeon. However, initial assessment may be performed by dermatology, family medicine, or internal medicine. If secondary causes are suspected, relevant specialties may be involved.