7 citations
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March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
April 2024 in “Nepal journal of dermatology, venereology & leprology” Premature graying of hair is common and stressful, but not well understood or treated.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
December 2023 in “Clinical, cosmetic and investigational dermatology” The study found that white hair in vitiligo has specific patterns and structures, which vary with the stage of the disease and may be similar to another hair condition.
105 citations
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April 2005 in “Cell” Hair graying happens because certain cells aren't maintained properly.
July 2002 in “Dermatologic Surgery” Some people's hair turned white or gray after using intense pulsed light for hair removal, and for some, it was permanent.
February 2013 in “Journal of the American Academy of Dermatology” Follicular red dots can appear where alopecia areata and vitiligo overlap.
60 citations
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September 2010 in “Journal of the American Academy of Dermatology” Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.
August 2018 in “Pediatric Dermatology” A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.
July 2025 in “Pigment International” Follicular vitiligo causes hair to gray without skin color loss.
9 citations
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July 1982 in “International Journal of Dermatology” A 31-year-old man's hair turned white suddenly, likely due to alopecia areata.
5 citations
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July 2010 in “Journal of life sciences” Gray hair has more continuous medullation and a higher medullary diameter than black hair.
October 2025 in “Indian Journal of Paediatric Dermatology” The infant's hair loss resolved naturally by 20 months without treatment.
1 citations
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July 2018 in “JAMA dermatology” Poliosis causes white hair patches due to lack of melanin.
39 citations
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January 2011 in “Archives of Dermatology” Reflectance confocal microscopy confirms that yellow dots are signs of damaged hair follicles in alopecia areata.
January 2017 in “Turkiye Klinikleri Journal of Dermatology” A 9-month-old baby had a rare, persistent ring-shaped hair loss condition.
1 citations
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January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
January 2023 in “Journal of Cutaneous Pathology” The study found certain scalp biopsy features can help tell apart alopecia areata from pattern hair loss even when typical immune cells are not seen.
2 citations
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July 2016 in “Veterinary dermatology” Hyperaesthetic leucotrichia in horses causes painful, recurring skin lesions and hair color changes, especially in Arabian and American paint horses.
15 citations
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June 2020 in “Journal of the American Academy of Dermatology” Shiny white structures in trichoscopy can indicate long-standing discoid lupus erythematosus alopecia.
February 2009 in “Journal of The American Academy of Dermatology” Yellow dots look different in various hair loss conditions and can help diagnose them.
1 citations
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January 2026 in “Physical review. D/Physical review. D.” Black holes with primary Proca hair can have unique shadows with inner rings, affecting how we observe them.
25 citations
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December 2008 in “Journal of Dermatological Case Reports” Skin color may change how alopecia areata looks under a dermoscope.
2 citations
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January 2023 in “Annals of Dermatology” A hairless patch on a boy's scalp from birth injury improved with minoxidil treatment.
January 2024 in “International Journal of Trichology” Recognizing perinevoid alopecia and concentric regrowth is important for diagnosing and treating alopecia areata.
8 citations
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May 2012 in “Clinical and Experimental Dermatology” An 82-year-old woman's hair turned white suddenly, likely due to a rare form of alopecia that targets pigmented hair.
December 2018 in “European Journal of Pediatric Dermatology/PD. European journal of pediatric dermatology” Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.
7 citations
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May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
Polarized microscopy helps identify hair irregularities in genetic disorders.
June 2009 in “Pigment Cell & Melanoma Research” Preventing hair graying may be possible by managing oxidative stress and activating melanocyte stem cells.