20 citations
,
April 2011 in “British Journal of Dermatology” Reflectance confocal microscopy can tell apart white dots on the scalp as either sweat gland ducts or hair follicle openings.
15 citations
,
November 2016 in “Journal of The American Academy of Dermatology” Exclamation mark hairs suggest early scalp disease, while white dots indicate it's chronic.
9 citations
,
July 2018 in “International Journal of Dermatology” White and yellow dots indicate severe female hair loss in dark skin.
60 citations
,
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.
73 citations
,
April 2010 in “Anais Brasileiros de Dermatologia” Dermoscopy helps diagnose and monitor treatment for hair loss from scarring conditions like discoid lupus and lichen planopilaris.