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What is Hyperhidrosis (Excessive Sweating)?

Hyperhidrosis is a condition marked by excessive and abnormal sweating that occurs independently of heat or physical activity. Individuals with hyperhidrosis may sweat so profusely that their clothing becomes soaked or their hands drip continuously. This condition can be localised, affecting areas with a high concentration of sweat glands, such as the hands, feet, or armpits, or it can involve the entire body.

When excessive sweating arises without an identifiable cause, it is referred to as primary hyperhidrosis. In contrast, secondary hyperhidrosis is associated with specific factors, including infections, anxiety, medication side effects, or hormonal changes related to pregnancy or menopause.

While hyperhidrosis is not typically considered a serious health risk, it can significantly affect a person’s quality of life, daily activities, and self-esteem. The stress of managing excessive sweating can worsen the condition, making it essential to seek effective solutions.

Many individuals with hyperhidrosis have tried various over-the-counter products, however, prescription-strength antiperspirants or topical treatments may provide better relief. If these options prove ineffective, alternative medications or therapies can be explored. In some instances, a referral to a dermatologist may be necessary to address the underlying causes of sweat gland overactivity.

Although hyperhidrosis may be more noticeable in the summer, it can affect individuals year-round. This condition is relatively common, impacting ~ 3 percent of the population between the ages of 20 and 60 (with symptoms tending to appear before the age of 25). Experiencing hyperhidrosis can be embarrassing, but it is crucial to understand that it can be effectively managed with the right treatment. Options for addressing excessive sweating include oral medications, injectables such as Botox, iontophoresis (a procedure that targets specific areas with a mild electric current), or even surgery to remove sweat glands. The most suitable treatment plan will depend on the severity of hyperhidrosis, the areas affected, and each patient’s unique circumstances.

What Causes Hyperhidrosis?

In primary hyperhidrosis, the nerves that signal sweat glands to produce sweat become overactive, leading to excessive sweating without any apparent triggers, such as physical activity or an increase in temperature. This condition can be exacerbated by stress or anxiety, and there is typically no underlying medical cause. Genetics may play a role — if a person’s parents have dealt with hyperhidrosis, they might be more likely to experience similar issues.

On the other hand, secondary hyperhidrosis is often linked to an underlying medical condition or can be a side effect of certain medications. This type of hyperhidrosis can lead to widespread sweating throughout the body, even during sleep. Common conditions that may cause secondary hyperhidrosis include:

  • Infections
  • Pregnancy
  • Menopause
  • Thyroid gland disorders
  • Low blood sugar
  • Diabetes
  • Some cancer types
  • Nervous system disorder

Certain medications can also result in excessive sweating, and discontinuing specific treatments can contribute to secondary hyperhidrosis.

Where Can Hyperhidrosis Occur On The Body?

Hyperhidrosis can affect various areas of the body, particularly those with a high concentration of sweat glands, with the more common areas being the Armpits, Hands, Feet, Face and Groin.

Excessive sweating in the Hands and Feet are often found together, and the condition traditionally impacts both sides of the body equally.

What Does The Treatment For Hyperhidrosis Involve?

Whilst there are surgical options, which include the removal of the sweat glands, these are serious surgeries with some risk of serious complications.

At RENA Clinics, our recommended treatment is to use botulinum toxin (the same active ingredient in anti-wrinkle injections).

The purified protein in the injection temporarily reduces nerve signals and prevents the nerves from activating the sweat glands.

Your Consultant Dermatologist will discuss the treatment options with you and provide a full explanation of the treatment.

To achieve optimal results, you may need to attend follow-up appointments based on your outcomes.

You can resume your everyday activities after the treatment

Book a Consultation

Follow the link to book a consultation with one of our consultant dermatologists, where your treatment goals can be discussed and advice provided on the most appropriate course of action.

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