June 2026 in “JAAD Case Reports” Scurvy, caused by vitamin C deficiency, can occur in people with restrictive diets and can be diagnosed by twisted hair shafts.
1 citations
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March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
33 citations
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August 2013 in “British Journal of Dermatology” Lack of small, fine hair on the front hairline is a key sign of frontal fibrosing alopecia.
40 citations
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December 2014 in “Indian Journal of Dermatology” Two new signs, 'signet ring vessels' and 'hidden hairs,' help tell apart scalp psoriasis and seborrheic dermatitis.
October 2025 in “Dermatologic Surgery” Twisted hair follicles can survive transplantation as well as intact ones.