\u2705 A clear understanding of the types and causes of hyperhidrosis<\/mark>
\u2705 How to find the treatment option that may suit you<\/mark>
\u2705 Whether insurance coverage<\/a> applies and what the specific costs are<\/mark>
\u2705 How miraDry, a non-surgical treatment, works<\/mark><\/p>\n
\ud83d\udd25 Why You May Want to Read This<\/span><\/strong> \ud83d\udd0d If you would first like to check whether you may have hyperhidrosis, please see our Hyperhidrosis Self-Check<\/a>.<\/p>\n Hyperhidrosis is a condition in which the body produces an abnormally large amount of sweat<\/mark>.<\/p>\n It is classified into two types<\/mark> based on the area of the body affected:<\/p>\n Each type can be further divided into secondary hyperhidrosis, which is caused by an underlying condition<\/mark>, and primary hyperhidrosis<\/a>, for which no clear cause has been identified<\/mark>. For more details on the causes of hyperhidrosis<\/a>, please refer to this page.<\/p>\n Sweating itself is a completely natural bodily function that helps regulate body temperature in response to heat and physical activity.<\/p>\n However, people with hyperhidrosis sweat far in excess of what is needed for normal temperature regulation<\/mark>.<\/p>\n For example, the sweating may be severe enough to prevent someone from writing on paper due to sweaty palms, or so excessive that visible sweat marks and odor become a constant source of distress.<\/span><\/strong> For more details on palmar hyperhidrosis (sweaty palms)<\/a>, please see this page.<\/p>\n Sweating that interferes with daily life<\/mark> can also take a significant toll on a person\u2019s mental well-being.<\/p>\n We frequently hear from patients who say things like, \u201cI can\u2019t concentrate at work because of my sweating,\u201d or \u201cBeing pointed out by others has really knocked my confidence.\u201d<\/strong><\/p>\n To address these concerns, it is important for each patient to first understand which type of hyperhidrosis they have<\/mark>.<\/p>\n Below, we explain the characteristics and causes of both generalized and focal hyperhidrosis in detail.<\/p>\n \u2753 If you are wondering \u201cIs this actually a medical condition?\u201d, please also see Is Hyperhidrosis a Disease?<\/a><\/p>\n \ud83d\udd0d Book Online Here<\/span><\/span><\/a><\/p>\n Generalized hyperhidrosis is a type of hyperhidrosis in which excessive sweating occurs across the entire body<\/mark>.<\/p>\n While the precise causes of hyperhidrosis are not fully understood, generalized hyperhidrosis is thought to be associated with conditions such as neurological disorders, infections, and metabolic abnormalities<\/mark>.<\/p>\n \ud83d\udcd6 For more details on excessive sweating (abnormal perspiration)<\/a>, please refer to this page.<\/p>\n Focal hyperhidrosis is a type of hyperhidrosis in which excessive sweating occurs in specific areas of the body, such as the palms, underarms, or soles of the feet<\/mark>.<\/p>\n The condition is named according to the affected area:<\/p>\n Focal hyperhidrosis may develop as a result of neurological damage caused by trauma or tumors<\/mark>, or it may arise when the sympathetic nervous system becomes dominant<\/mark>.<\/p>\n Some researchers suggest that genetic factors play a significant role; however, findings vary considerably across studies, and no definitive conclusions have been reached regarding the influence of genetics.<\/p>\n Although hyperhidrosis\u2014characterized by excessive sweating\u2014and axillary osmidrosis (underarm odor)\u2014characterized by a distinctive odor from the underarms\u2014may seem similar, they are entirely different conditions.<\/span><\/strong> For more details, please see The Difference Between Hyperhidrosis and Underarm Odor<\/a>.<\/p>\n Specifically, they differ in the type of sweat gland involved<\/mark>.<\/p>\n The differences between hyperhidrosis and axillary osmidrosis are explained below, along with a description of each type of sweat gland.<\/p>\n Unlike eccrine sweat glands, which are distributed throughout the body, apocrine sweat glands exist only in certain areas and are responsible for the distinctive odor associated with axillary osmidrosis<\/mark>.<\/p>\n Apocrine sweat glands are found in the following locations:<\/p>\n Sweat produced by apocrine glands is more viscous<\/mark> than that from eccrine glands.<\/p>\n It contains substances such as fatty acids, urea, and ammonia that serve as nutrients for bacteria.<\/mark> As these bacteria break down these substances, a strong odor is produced<\/span><\/strong>.<\/p>\n \ud83d\udcd6 For more details on underarm odor, please see Underarm Odor (Axillary Osmidrosis): Causes and Treatment<\/a>.<\/p>\n In hyperhidrosis, sweat is secreted from the eccrine sweat glands<\/mark>.<\/p>\n Eccrine sweat glands are distributed across almost the entire body<\/mark> and are responsible for the vast majority of sweat produced by the human body.<\/p>\n Sweat from eccrine glands is naturally odorless<\/mark>. It is approximately 99% water<\/mark> and has a watery consistency.<\/p>\n Odor from eccrine sweat occurs when sweat on the skin\u2019s surface mixes with dead skin cells and sebum, which bacteria then break down<\/mark>.<\/p>\n This means that even with hyperhidrosis, sweat odor can be reduced by keeping the skin clean and managing sweat promptly<\/span><\/strong>.<\/p>\n The causes of hyperhidrosis differ between generalized and focal hyperhidrosis<\/mark>. For more details, please see Causes of Hyperhidrosis<\/a>.<\/p>\n Below, we explain the causes of each type in detail.<\/p>\n Possible causes of generalized hyperhidrosis include the following:<\/p>\n
\u274c Continuing the wrong approach based on self-judgment
\u274c Going on without knowing about effective treatment options<\/mark>
\u274c Missing out on insurance-covered treatments and paying more than necessary<\/mark><\/p>\n![\"\"](\"http:\/\/ic-clinic-ueno.com\/wp-content\/uploads\/2026\/01\/\u30df\u30e9\u30c9\u30e9\u30a4CP\u2460-1.jpg\")
<\/figure>\n![\"\"](\"http:\/\/ic-clinic-ueno.com\/wp-content\/uploads\/2026\/01\/\u30df\u30e9\u30c9\u30e9\u30a4CP\u2461-1.jpg\")
<\/figure>\n![\"\"](\"https:\/\/ic-clinic-ueno.com\/wp-content\/uploads\/2026\/01\/\u30df\u30e9\u30c9\u30e9\u30a4CP\u2462-1.jpg\")
<\/figure>\n![\"\"](\"http:\/\/ic-clinic-ueno.com\/wp-content\/uploads\/2026\/01\/\u30df\u30e9\u30c9\u30e9\u30a4CP\u2463.jpg\")
<\/figure>\n\ud83d\udca7 What Is Hyperhidrosis? | A Condition Involving Abnormally Increased Sweating<\/h2>\n
![\"Hyperhidrosis\"](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/takanshou.jpg\")
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\ud83c\udf10 What Is Generalized Hyperhidrosis?<\/h3>\n
![\"Generalized](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/whole-body-takanshou.jpg\")
<\/figure>\n\ud83d\udccc What Is Focal Hyperhidrosis?<\/h3>\n
\n
![\"Focal](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/part-body-takanshou.jpg\")
<\/figure>\n\ud83e\udd14 Hyperhidrosis vs. Underarm Odor (Axillary Osmidrosis) | Different Types of Sweat Glands Are Involved<\/h2>\n
\n
![\"Sweat](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/sweat-glands.png\")
<\/figure>\n\ud83d\udd34 Apocrine Sweat Glands<\/h3>\n
\n
![\"Apocrine](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/apocrine.jpg\")
<\/figure>\n\ud83d\udd35 Eccrine Sweat Glands<\/h3>\n
![\"Apocrine](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/ecrine.jpg\")
<\/figure>\n\ud83d\udd0d Causes of Hyperhidrosis<\/a> | Causes Differ by Type<\/h2>\n
\ud83c\udf10 Causes of Generalized Hyperhidrosis<\/h3>\n
![\"\"](\"https:\/\/ic-clinic.com\/wp-content\/uploads\/2020\/09\/pic_05b.jpg\")
<\/figure>\n![\"Topical](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/external-medicine.jpg\")
<\/figure>\n![\"Oral](\"http:\/\/ic-clinic.com\/wp-content\/themes\/ic_renewal\/shared\/img\/service\/takanshou\/oral-medicine.jpg\")
<\/figure>\n