Body Parts: Whole Body
Medical Subjects: Skin

What Is Hyperhidrosis

What is hyperhidrosis?

Hyperhidrosis refers to the abnormal increase of partial or whole body skin sweating under the environment where we live normally. It may be related to endocrine disorders, changes in hormone levels, mental stress and other factors.

Hyperhidrosis is divided into localized and systemic hyperhidrosis:

  • Localized hyperhidrosis is more common in the palms, soles of the feet (hereinafter referred to as the metatarsus), armpits, thighs, and perineum around the anus to genitalia. The abnormal increase of sweat secretion in these parts will then cause a series of symptoms such as whitening, ulceration, bacterial or fungal infection, etc.
  • Systemic hyperhidrosis is a massive sweating all over the body caused by various diseases.

Systemic hyperhidrosis is mainly the treatment of related systemic diseases, and localized hyperhidrosis is mainly treated with external drugs. Attention should be paid to avoid mental stress in case of mental hyperhidrosis. Other treatments include injection of botulinum toxin, surgical treatment and physical treatment.

Are there many patients with hyperhidrosis?

Authoritative survey has shown that the incidence rate in China is 4%–6%. In China with a large population, the number of patients is relatively large.


What Is The Cause Of Hyperhidrosis

What causes hyperhidrosis?

  • Disease hyperhidrosis: Such as hyperthyroidism, pituitary gland (command command of some hormone secretion) hyperthyroidism, diabetes, high fever, central nervous system (brain and spinal cord) injury can cause a large number of sweating all over the body.

  • Functional hyperhidrosis: It is mainly related to mental factors, such as mental stress, emotional excitement, anger, terror, anxiety, etc.

The nervous system sensitivity of patients with hyperhidrosis to regulate sweating function is increased, so that slight stimulation of disease-causing and functional hyperhidrosis factors such as endocrine disorders, changes in hormone levels and mental stress can cause massive sweating.

What kind of person easily get hyperhidrosis?

Hyperhidrosis often occurs initially in childhood or adolescence, and can occur in both men and women. It generally lasts for several years and tends to naturally decrease in adulthood.

Is hyperhidrosis contagious?

It is definitely not contagious. Hyperhidrosis is not an infectious disease.

Is hyperhidrosis hereditary? What might be hereditaried?

Some patients with hyperhidrosis, their family has a clear similar disease relatives, this part of the patients and genetic relationship.

When one of the patients' parents is ill or both parents are ill, these patients get sick because of heredity and can be ill for both men and women, regardless of gender. At least half of a patient's children are genetically affected.


What Symptom Does Hyperhidrosis Have

What are the manifestations of hyperhidrosis when it occurs in the palms and soles of the feet?

Palm refers to the palm, metatarsal refers to the soles of the feet. Palmoplantar hyperhidrosis is often confined to the palms and soles of the feet and sweats more when the temperature is high. Pathological skin shows cold, wet or pale feet of both hands, and punctuate desquamation and whitish skin can be seen on the soles of the feet, often accompanied by foot odor.

Patients with palmoplantar hyperhidrosis can also be combined with axillary hyperhidrosis, which is manifested as hyperhidrosis in the armpit area. The axillary hyperhidrosis can also be diagnosed at this time. The symptoms of the two diseases sometimes overlap.

Not all sweats in the palms and soles of the feet are hyperhidrosis, which needs to be diagnosed after doctor evaluation.

What kind of expression can hyperhidrosis happen in axillary meeting?

Most of the cases were localized in the armpit. The pathological skin shows excessive sweating. The skin in this part is thin and tender, and is often wet and rubbed. It is easy to fester, breed bacterial or fungal infection, and is often accompanied by body odor.

Palmoplantar hyperhidrosis occurs in 25% of patients with axillary hyperhidrosis.

What are the manifestations of gustatory hyperhidrosis?

Gustatory hyperhidrosis has physiological and pathological characteristics, and is specifically as follows:

  • Physiological taste hyperhidrosis: Hyperhidrosis, characterized by excessive sweating of the scalp and face due to dietary irritation, is a rare skin disease.
    Some people often perspire more on the forehead, upper lip, mouth circumference, chest and other parts after eating spicy and stimulating food (such as chili, hot pot, etc.), chocolate, coffee, wine, tea or hot soup.

  • Pathological gustatory hyperhidrosis: It means that when eating after parotid gland surgery, there was increased sweating, dampness, redness and swelling in the gills, front and upper parts of ears and temples.

    This is because partial nerve damage was caused by parotid gland surgery, and in the process of nerve repair, the nerves that govern salivation are mistakenly connected to the nerves that govern sweat gland secretion.

    Therefore, when food intake stimulation (which normally stimulates massive secretion of saliva) occurs, the nerves that govern saliva mistakenly transmit signals to sweat glands, resulting in massive secretion of sweat. This phenomenon is also called frey's syndrome.

Under special circumstances, we need to see a doctor in the hospital.

What are the manifestations of systemic hyperhidrosis?

At present, there is no definite definition for the systemic hyperhidrosis, which is mainly the massive sweating all over the body caused by other diseases. The patients who perspire can't control it, and the sweating is so profuse that the clothes, bed sheets and bedding can be soaked to the skin. For example:

  • High fever caused by infection of bacteria and virus, and excessive sweating after taking antipyretics;
  • Endocrine disorders and changes in hormone levels such as hyperthyroidism, pituitary hyperthyroidism, diabetes, pregnancy, menopause;
  • Diseases occur in the central nervous system that regulates sweat secretion, such as brain and spinal cord injury.

What are the manifestations of emotional hyperhidrosis?

Due to emotional stimulation such as emotional excitement, excitement, mental tension, etc., sweat gland secretion increased and the appearance of sweating, performance for the tip of the nose, forehead, chest, anus and genital area of perineum sweating more.

What harm does hyperhidrosis have?

Since hyperhidrosis can occur from an early age, it is more obvious in adolescence. During this period, patients mainly live in schools. Hyperhidrosis in palms, soles of feet, armpits, roots of thighs, and perineum around anus to genitalia brings great confusion to them.

The students' strange eyes and behind-the-scenes comments have brought them intangible spiritual pressure.

In addition, young people tend to be nervous, anxious and afraid, making sweating more serious. The increase in sweating aggravates anxiety, thus creating a vicious circle. It may cause the patient to be withdrawn, introverted, disobedient to others, and inferiority complex, affecting his studies and life.

Therefore, patients with hyperhidrosis should not forget to take good care of their emotions while paying attention to symptom relief. You can improve your emotions through meditation, exercise and other lifestyle changes, and you can also help yourself solve your emotional distress through psychological counseling.

In addition, the understanding and care of the family members were also of great help to the emotional recovery of the patients.


How To Check For Hyperhidrosis

Is palmoplantar hyperhidrosis and sweaty foot the same disease?


Foot sweats refer to the special pungent odor produced after the sweat secreted between the sole and toe is decomposed by bacteria, which is more serious after adolescence and can be reduced or disappeared in the elderly. Foot odor can cause less sweating or normal sweating. Palmoplantar hyperhidrosis is profuse sweating but not smelly.

The two diseases can occur alone or in a person at the same time, manifesting as profuse sweating and smelly feet.

Is axillary hyperhidrosis and body odor the same kind of disease?


Body odor, also known as axillary osmidrosis, is more serious after adolescence and can be reduced or eliminated in the elderly. It is a special pungent odor emanating from the armpit. It is most obvious when there is excessive hot sweat or after exercise.

The body odor often has axillary hyperhidrosis at the same time, and the axillary hyperhidrosis also often has body odor at the same time, and the two diseases can occur independently.

What check does hyperhidrosis need to do to diagnose?

Hyperhidrosis can be definitely diagnosed in general according to the typical pathological skin manifestations and the presence of relatives with similar diseases in the families of some patients, and no special examination is required to confirm the diagnosis. Hyperhidrosis caused by other diseases requires relevant examinations for these diseases.


How To Prevent Hyperhidrosis

Can hyperhidrosis be prevented?

  • No!

Due to its etiology and genetic and other factors, it is not possible to carry out targeted prevention. Patients with reproductive needs can go to relevant institutions for genetic counseling.


How Is Hyperhidrosis Treated

What branch should hyperhidrosis see?

In dermatology, hyperhidrosis is a sweat gland disease with symptoms mainly on the skin.

Can hyperhidrosis be cured radically?

No, there is no radical cure at present. Even surgical treatment has the possibility of recurrence.

How is hyperhidrosis treated? Do I need to take medicine, injections or surgery?

Systemic hyperhidrosis is difficult to treat, and the main reason is to actively treat the diseases related to it. Localized hyperhidrosis is mainly dealt with locally. Specific treatments were as follows:

  • Medication

  • External application: It is mainly used for localized hyperhidrosis and can also be used for local treatment of systemic hyperhidrosis, including 0.5% aluminum acetate solution, 5% alum solution, and 5% tannic acid solution. External use too many times, will cause local skin dry, mild chapped or serious irritation, can external use humectant, emollient to reduce these phenomena.

  • Internal medicine: sedatives (phenobarbital, pentobarbital, secobarbital, clomazone, etc.) and small doses of anti-anxiety drugs (diazepam, doxepin, etc.) are effective for emotional hyperhidrosis.

    However, most patients cannot accept the adverse reactions caused by these drugs, such as drowsiness, dizziness, drowsiness, and no spirit in the whole person. Therefore, clinical application is less.

    Larger doses of anticholinergic drugs such as atropine and anisodamine can inhibit sweat secretion and cause intolerable dry mouth, thus tending to elimination. Once used, use with caution and in accordance with specific doctor's advice.

  • Physiotherapy: The running water ion electrophoresis therapy uses current to introduce the water ions in the cushion into the skin to block sweat glands from sweating, and is suitable for patients with local (palm, sole and armpit) external treatment failure.

    Disabled for pacemaker users. Superficial X-ray irradiation can inhibit the secretion of sweat glands, and is only applicable to other patients with severe palmoplantar hyperhidrosis who have failed to receive treatment.

  • Botulinum toxin A(BTX-A): Local injection is mainly used for the treatment of palmoplantar and axillary hyperhidrosis.

  • Surgical treatment:

  • For the patients with axillary hyperhidrosis only, the minimally invasive surgery to remove the active sweat glands is the same as the familiar body odor surgery method. This method has good curative effect and low recurrence rate. Currently, it has been carried out more frequently and is more acceptable to the patients.

  • The selective resection of the second to fourth pairs of thoracic sympathetic nerves in the palm, armpit, anterior chest and facial hyperhidrosis (thus cutting off the superior "sweat gland, please secrete a large amount immediately" command without sweating) has a significant effect, but it is not suitable for patients with metatarsal hyperhidrosis.

    Besides, surgery can lead to permanent no sweating and compensated hyperhidrosis in other parts, so it should be used with caution.

  • Gold microneedle radiofrequency therapy; Is mainly suitable for axillary hyperhidrosis.

What are the precautions in the treatment of hyperhidrosis with internal sedatives such as phenobarbital, pentobarbital, secobarbital and clomazone?

Sedatives can relieve the excessive tension in the nervous system and are effective for emotional hyperhidrosis. Small doses of sedatives should be used. High doses can make patients feel groggy, dizzy, sleepy and the whole person is not in spirit, affecting learning and work. Therefore, clinical application is less and patients should follow doctor's advice.

What is the treatment of hyperhidrosis with botulinum toxin A?

Botulinum toxin A(BTX-A) is a neurotoxin produced by botulinum toxin during reproduction, which can shrink sweat glands and reduce the secretion of sweat to achieve the purpose of treating hyperhidrosis. It is mainly used for palmoplantar and axillary hyperhidrosis.

The specific process is to dilute BTX-A into different concentrations and inject it under the skin. Generally, the sweating stops obviously 5–7 days after injection, and the average duration is 9–12 months.

What are the advantages and disadvantages of using botulinum toxin A to treat hyperhidrosis?

  • The invention has that advantage of low recurrence rate, simple and convenient operation, light tissue damage, small pain, safety and effectiveness and does not affect normal life and work on the next day.

  • Disadvantages: It needs a course of treatment, and the interval between the two treatments is at least half a year, so there is the possibility of recurrence.

How to nurse hyperhidrosis after using botulinum toxin a to treat?

  • After treatment, if the pain is severe, ice can be applied immediately for about 20 minutes, but force cannot be applied.
  • Local water was avoided on the day of treatment, and normal life and work were resumed after the second day.

What is the minimally invasive surgical treatment of axillary hyperhidrosis?

Minimally invasive surgery for axillary hyperhidrosis mainly refers to cutting off or scraping off the active sweat gland tissue through a small incision, so that the secreted sweat is reduced, and the purpose of treating hyperhidrosis is achieved.

  • Advantages: small incision, small trauma, small scar, postoperative recovery quickly.
  • Disadvantages: If the resection is not clean, postoperative recurrence will still occur, and the operation needs small shearing and suturing, and may be accompanied by bleeding and infection.

How to nurse after minimally invasive operation treatment of axillary hyperhidrosis?

  • Exercise less and sweat less.
  • Regular dressing change and return visit.
  • Move your arms as little as possible to avoid loosening the dressing.
  • In general, the stitches are taken out in 7 days. After the stitches are taken out, the user can normally take a shower and take a bath. As far as possible, the user does not need to take a sauna or take a high-temperature bath. The reason is that although the stitches have been taken out, the skin incision has not completely recovered to normal.

What is the gold microneedle radiofrequency treatment of axillary hyperhidrosis?

The gold microneedle radio frequency is a new technology for the treatment of axillary hyperhidrosis. The gold microneedle radio frequency is a machine, which is just started in some 3A hospitals in China.

The specific process is that an insulated needle body sprayed with gold (a treatment head is provided with dozens of needle bodies, and the diameter of the needle body is 0.25 mm) is penetrated into the skin, and the needle body can emit radio frequency to heat sweat gland tissues so as to damage the sweat gland tissues and reduce the secretion of the sweat glands, thereby achieving the purpose of treating hyperhidrosis.

The specific process was as follows: the axillary hair area of the patient was disinfected and anesthetized, and the micro-acupuncture was inserted into the skin, and the whole axillary hair area was treated once.

What are the advantages and disadvantages of the minimally invasive surgical treatment of axillary hyperhidrosis and the gold micro-needle radiofrequency treatment?

  • Minimally invasive surgical treatment
  • Advantages: good curative effect, one operation, permanent curative effect.
  • Disadvantages: long recovery period, inconvenient lifting of the hand, local discomfort, infection, hematoma, pigmentation, and rare recurrence.
  • Gold microneedle radiofrequency therapy
  • Advantages: less pain, good curative effect, safety and low risk.
  • Still, the disadvantages lie in the fact that it requires one to three treatments with an interval of 4 to 6 weeks, a long cycle, local swelling, punctuate scab, and local alopecia, and a small part of patients will relapse.

How to nurse axillary hyperhidrosis after gold microneedle radiofrequency treatment.

  • Local ice application for about 15 minutes immediately after the operation can reduce the burning sensation and pain, which will be alleviated after 2–3 hours.
  • Apply burn ointment externally for one week.
  • Slight redness, edema or pain within 3–5 days after treatment is a normal phenomenon. Please don't be too nervous. You can apply anti-inflammatory ointment externally. If these phenomena don't get better after a few days, please see a doctor in a timely manner.

What Should Hyperhidrosis Patient Notice In Life

Can hyperhidrosis patients still have children? Can you tell if there's a problem with the kid?

Can have children, hyperhidrosis does not affect the reproductive function. But current technology cannot predict whether children will have problems.

What should hyperhidrosis patients pay attention to in life? Do you need any taboos?

  • Change clothes frequently and keep clean.
  • Keep your mind at ease and try to adjust your emotions.
  • Eat less pungent food such as chili, raw garlic, raw onion, spicy hot pot, may reduce sweat secretion, but the treatment of hyperhidrosis itself has no clear effect.

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