15 citations
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March 1996 in “PubMed” Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.
16 citations
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July 2005 in “Clinical and Experimental Dermatology” Twisted hair is rare in severe anorexia nervosa, found in only 2 out of 30 patients.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.
6 citations
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February 2013 in “Veterinary Dermatology” A young cat had a rare hair condition with twisted hair shafts but stayed healthy.
6 citations
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August 1993 in “Archives of Dermatology” A woman's hair changed to a dry, tangled texture that's hard to comb after treatment with spironolactone, suggesting the medication might cause such hair changes.