97 citations
,
March 2010 in “The American Journal of Human Genetics” A mutation in the KRT74 gene causes tightly curled hair.
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.
29 citations
,
July 2015 in “Journal of Medical Genetics” A genetic variant in the KRT25 gene causes tightly curled hair.
17 citations
,
March 2011 in “Pediatric Dermatology” Two Sikh brothers developed permanent hair loss from wearing turbans tightly, a condition that became apparent after they moved to Austria.
1 citations
,
April 2020 in “Asian Journal of Medicine and Biomedicine” A child's toe was saved from a rare condition where hair tightly wrapped around it by performing surgery.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
28 citations
,
January 2012 in “Case Reports in Medicine” Hair-thread Tourniquet Syndrome, where hair or thread tightly wraps around a body part, is not rare and requires early detection to prevent serious damage.
8 citations
,
February 1968 in “Australian Journal of Zoology” The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
August 2022 in “Archives of pediatric surgery” Hair-Thread Tourniquet Syndrome is a rare condition where hair or thread tightly wraps around a child's body part, requiring quick treatment to prevent damage.
25 citations
,
November 2018 in “Cell reports” The study concluded that specific proteins are necessary to maintain the structure that holds epithelial cells tightly together.
15 citations
,
August 2010 in “Annals of saudi medicine/Annals of Saudi medicine” Hair tourniquet syndrome is a rare condition where hair wraps around an infant's body part, needing quick removal to prevent damage.
9 citations
,
May 2021 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Topical minoxidil may help treat a rare genetic hair condition with no fully effective treatments yet.
85 citations
,
October 2007 in “International Journal of Dermatology” Curly hair shape is due to uneven growth patterns in the hair follicle.
66 citations
,
October 2003 in “Dermatologic clinics” Excision and laser techniques can effectively treat acne keloidalis nuchae.
40 citations
,
June 2013 in “Scientific Reports” A gene variant in KRT71 causes the curly fur in Selkirk Rex cats.
21 citations
,
July 2005 in “European Journal of Emergency Medicine” Hair-tourniquet syndrome can cause serious toe injuries in infants but can be treated if found early.
8 citations
,
June 2016 in “Journal of Pediatric Orthopaedics B” Washing baby socks without flipping them inside out may increase the risk of Hair Tourniquet Syndrome.
December 2025 in “Frontiers in Medicine” ARWH is a rare hair disorder with no cure, but potential treatments include minoxidil and other therapies.
119 citations
,
November 1969 in “Journal of Ultrastructure Research” Macrophages help break down collagen around hair follicles during hair growth.
64 citations
,
April 1972 in “American Journal of Clinical Nutrition” Hair chromium levels reflect nutritional status after standard washing.
54 citations
,
March 2009 in “BioEssays” Hormones control keratin production in skin and hair.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
15 citations
,
October 2016 in “Journal of dermatological treatment” Proper hair care can prevent and stop hair breakage in people with acquired trichorrhexis nodosa.
15 citations
,
July 1998 in “PubMed” Fentanyl accumulates differently in hair from internal use compared to external exposure.
13 citations
,
July 1973 in “Archives of dermatology” Tight cornrow braids may cause hair loss.
7 citations
,
January 2012 in “International Journal of Trichology” A man with Woolly Hair Syndrome had very curly, fragile hair, and doctors used a special scalp examination to diagnose him without invasive tests.
6 citations
,
February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
6 citations
,
January 2015 in “International Journal of Pediatrics and Adolescent Medicine” Hair removal cream effectively and painlessly treated infants with hair tourniquet syndrome.
6 citations
,
May 2013 in “Dermatologic Surgery” FUE can be successfully done on African-American hair by using larger punch tools and careful techniques to reduce hair damage.