January 2023 in “Indian dermatology online journal” Skin problems after waxing led to a sarcoidosis diagnosis.
November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
Stress can cause hair loss and trigger autoimmunity by damaging hair follicle cells.
September 2016 in “European Journal of Pediatric Dermatology/PD. European journal of pediatric dermatology” Ulerythema ophryogenes causes hair thinning and inflammation, with limited treatment options.
November 2022 in “Journal of Investigative Dermatology” The medicine Cyclosporin A might cause excessive hair growth by reducing a protein that controls hair growth.
6 citations
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January 2018 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” An 8-year-old girl with Rapunzel syndrome had a hairball removed from her stomach and intestines and recovered well after surgery.
3 citations
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June 2016 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” A patient with hair loss condition grew excessive hair in areas covered by a cast.
March 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” A specific immune response helps control mite populations on the skin, maintaining healthy hair follicles.
5 citations
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September 2021 in “PubMed” Hair removal methods vary in effectiveness and side effects, with electrolysis being the only permanent solution.
May 2025 in “Acta Dermato Venereologica” The Paxbp1 gene is crucial for healthy hair follicles.
5 citations
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January 2015 in “Skin appendage disorders” Colored hair-thickening fibers can help hide hair loss in some people with Epidermolysis Bullosa but may cause scalp irritation.
489 citations
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June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
1 citations
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June 2022 in “PubMed” Alopecia causes hair loss and should be treated early, especially scarring types where hair cannot regrow.
9 citations
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June 2024 in “Cell Reports” Hair follicles play a crucial role in regulating skin barrier function.
February 2013 in “Journal of the American Academy of Dermatology” Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.
18 citations
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November 2016 in “International clinical psychopharmacology” Inositol was not more effective than a placebo in treating trichotillomania.
3 citations
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January 2020 in “Annals of Dermatology” More atypical club hairs may indicate Telogen Effluvium.
May 2006 in “Women's Health Medicine” Excessive hair growth in women, often from high androgen levels, is usually caused by PCOS, and can be treated with hair removal, medication, and possibly weight loss.
18 citations
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August 2018 in “The FASEB journal” Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.
2 citations
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September 2002 in “Dermatologic Surgery” Each group of hair follicles on the scalp shares one muscle that helps control hair movement.
9 citations
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March 2001 in “Clinics in dermatology” Hirsutism in women is often due to hormone sensitivity and has significant psychological effects.
Emotional states significantly affect hair growth and hair disorders.
January 2007 in “Durham e-Theses (Durham University)” Hair growth and shedding involve specific cell changes and gene roles.
2 citations
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January 1987 in “PubMed” Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.
April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” A girl with excessive hair growth had a genetic change on chromosome 17 that reduced the activity of two genes linked to hair growth.
5 citations
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July 2005 in “British journal of dermatology/British journal of dermatology, Supplement” A man grew hair on his penis, which is not common, and needed surgery to remove it.
The chapter explains causes of hair loss and excessive hair growth in animals.
December 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Abnormal contraction of connective tissue in hair follicles causes hair loss by killing off important cells, and treating this could improve hair growth.
1 citations
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December 2015 in “International journal of pediatric research” Hair tourniquets on the clitoris are rare but can cause serious harm and should be removed quickly.