17 citations,
December 2009 in “Journal of Pediatric Orthopaedics” Two babies needed surgery to remove hair tightly wrapped around their toes to prevent serious injury.
5 citations,
September 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
November 2021 in “CRC Press eBooks” Hair shaft disorders cause fragile, brittle, and abnormal-looking hair.
126 citations,
January 1987 in “Journal of The American Academy of Dermatology” The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.
43 citations,
September 2006 in “Annals of Plastic Surgery” A hair wrapped tightly around an infant's toe caused severe damage, requiring early removal and possibly surgery to prevent worse outcomes like amputation.