In this case report, researchers documented a 19-year-old male professional athlete with acquired trichorrhexis nodosa, noting environmental factors like chlorine exposure during swimming may have contributed to his condition, which improved after advice on hair care changes.
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July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” This review discusses various environmental and chemical factors that contribute to hair shaft disorders, such as fractures, and highlights the potential roles of cysteine and glutamine in hair health, but reports no new results.
October 2025 in “Dermatologic Surgery” This study found that hair follicles with twisted bulbs demonstrated similar survival rates to intact follicles after transplantation into nude mice, suggesting they may be viable for use in FUE surgery.
16 citations
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April 2012 in “Journal of mammalogy” Among Australian fur seals at one colony, this study found that alopecia, primarily affecting juvenile females, is linked to hair shaft fractures associated with low tyrosine and zinc levels, as well as higher pollutant exposure.
January 2024 in “Revista del Centro Dermatológico Pascua” In this case report, a 24-year-old male with acquired distal trichorrhexis nodosa showed significant improvement after avoiding harmful hair treatments and using a repair shampoo alongside biotin and zinc supplements.