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A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device
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Classification of Systemic and Localized Sweating Disorders.

Yuichiro Ohshima, Yasuhiko Tamada

    Current Problems in Dermatology
    |September 2, 2016
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    Summary
    This summary is machine-generated.

    Hyperhidrosis involves excessive sweating, either generalized or focal, and can be primary or secondary to other conditions. Anhidrosis, the absence of sweating, can be congenital or acquired, with various underlying causes or idiopathic origins.

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    Area of Science:

    • Dermatology
    • Endocrinology
    • Neurology

    Background:

    • Hyperhidrosis is categorized into generalized and focal types, each with primary (idiopathic) and secondary causes.
    • Secondary hyperhidrosis can stem from infections, endocrine/metabolic issues, neurological disorders, or medications.
    • Anhidrosis, the absence of sweating, is classified as congenital/genetic or acquired, with specific syndromes and idiopathic forms identified.

    Purpose of the Study:

    • To provide a comprehensive overview of the classification and causes of hyperhidrosis and anhidrosis.
    • To differentiate between primary and secondary forms of both excessive sweating and absence of sweating.
    • To detail the various subtypes and potential etiologies of generalized and focal sweating abnormalities.

    Main Methods:

    • Literature review and synthesis of existing classifications for hyperhidrosis and anhidrosis.
    • Categorization based on the distribution of sweating abnormalities (generalized vs. focal).
    • Analysis of etiological factors, including idiopathic, genetic, secondary, and drug-induced causes.

    Main Results:

    • Hyperhidrosis is classified into generalized (whole body) and focal (specific areas) types.
    • Primary focal hyperhidrosis commonly affects palms, soles, axillae, and head.
    • Anhidrosis subtypes include congenital/genetic (e.g., hypohidrotic ectodermal dysplasia) and acquired (secondary or idiopathic).
    • Acquired idiopathic generalized anhidrosis (AIGA) further subdivides into sudomotor neuropathy, idiopathic pure sudomotor failure, and sweat gland failure.

    Conclusions:

    • Understanding the distinct classifications of hyperhidrosis and anhidrosis is crucial for diagnosis.
    • Identifying primary versus secondary causes is key to appropriate management strategies.
    • Further research into idiopathic anhidrosis subtypes may elucidate underlying mechanisms and treatments.