idiopathic guttate hypomelanosis

{{Short description|Acquired medical condition}}

{{Infobox medical condition (new)

| name = Idiopathic guttate hypomelanosis

| synonyms = Leukopathia symmetrica progressiva

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| risks =Older age

| diagnosis =Appearance

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Idiopathic guttate hypomelanosis is characterised by multiple small whitish flat spots.{{cite book |last1=James |first1=William D. |last2=Elston |first2=Dirk |last3=Treat |first3=James R. |last4=Rosenbach |first4=Misha A. |last5=Neuhaus |first5=Isaac |title=Andrews' Diseases of the Skin: Clinical Dermatology |date=2020 |publisher=Elsevier |location=Edinburgh |isbn=978-0-323-54753-6 |pages=870–871 |edition=13th |chapter-url=https://books.google.com/books?id=UEaEDwAAQBAJ&dq=Disturbances&pg=PA870 |language=en |chapter=36. Disturbances of pigmentation}} They are typically irregular, well defined and frequently appear on the arms, legs, and faces of older people.

It occurs in up to 80% of people over 70 years old.{{cite journal |last1=Brown |first1=Falon |last2=Crane |first2=Jonathan S. |title=Idiopathic Guttate Hypomelanosis |journal=StatPearls |date=2022 |pmid=29489254 |url=https://pubmed.ncbi.nlm.nih.gov/29489254/ |publisher=StatPearls Publishing}} Females may notice it at a younger age than males.{{cite web |title=Idiopathic guttate hypomelanosis |url=https://www.pcds.org.uk/clinical-guidance/idiopathic-guttate-hypomelanosis |archive-url=https://web.archive.org/web/20250327195106/https://www.pcds.org.uk/clinical-guidance/idiopathic-guttate-hypomelanosis |archive-date=27 March 2025 |accessdate=25 August 2022 |website=Primary Care Dermatology Society |publisher=Primary Care Dermatology Society |language=en}}