15 citations
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November 2016 in “Journal of The American Academy of Dermatology” Exclamation mark hairs suggest early scalp disease, while white dots indicate it's chronic.
September 2021 in “CRC Press eBooks” Traumatic alopecia causes hair loss from pulling or rubbing, leading to broken hairs and changes in the scalp.
April 2012 in “Journal of the American Academy of Dermatology” Dermoscopy can help diagnose tinea capitis in children by looking for comma hairs, black dots, and broken hairs with white bands.
5 citations
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January 2016 in “International Journal of Trichology” Erlotinib can cause hair loss and texture changes.
4 citations
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January 2019 in “Annals of dermatology/Annals of Dermatology” Changing hairstyles can help hair regrow in children with hair loss from tight braids or ponytails.