14 citations
,
July 2016 in “Anatomical Science International” The study suggests that the arrector pili muscle is important for hair health and its damage might contribute to hair loss.
18 citations
,
January 1992 in “Dermatology” A 4-year-old girl has a rare condition causing hairlessness and skin bumps, but normal teeth and sweating.
January 2012 in “Case reports in pediatrics” A 16-year-old boy's arm hair grew more after wearing a splint, but it returned to normal in 8 months.
April 2012 in “Journal of evolution of medical and dental sciences” No effective treatment exists to stimulate hair growth in atrichia with papular lesions.
January 2023 in “Indian dermatology online journal” Skin problems after waxing led to a sarcoidosis diagnosis.
The document concludes that the girl's hairlessness is likely inherited from her parents.
20 citations
,
October 2005 in “Archives of Dermatological Research” 8 citations
,
January 2011 in “International journal of trichology” Accurate diagnosis of APL is crucial to avoid unnecessary treatments.
8 citations
,
October 2011 in “Anthropologischer Anzeiger” Pubic hair is thicker than axillary and scalp hair, useful for forensic identification.
11 citations
,
February 2011 in “The Journal of Dermatology” Mutations in the hairless gene cause a rare form of permanent hair loss.
20 citations
,
January 2002 in “Laboratory Animals” Mutations in the hairless gene cause hair loss and skin cysts in rhesus macaques.
May 2006 in “The American journal of medicine” The man had persistent itchy bumps on his cheeks and neck despite trying different shaving products.
31 citations
,
January 2014 in “International Journal of Trichology” The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.
13 citations
,
January 2014 in “Aesthetic Surgery Journal” Cyperus rotundus oil effectively reduces unwanted hair without side effects.
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.
December 2025 in “Pomeranian Journal of Life Sciences” A miner developed extra shoulder hair due to long-term work pressure and inflammation.
A six-year-old girl with extra hair on her elbows was treated with hair removal methods.
11 citations
,
September 2016 in “Archives of Dermatological Research” People with denser forearm hair have a higher risk of certain skin cancers.
4 citations
,
August 2015 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Both fixed and incremental laser treatments effectively reduced underarm hair, but the fixed method was less painful.
The patient improved with treatment for depilating folliculitis.
35 citations
,
March 2014 in “British Journal of Dermatology” Hair loss in male pattern baldness involves muscle degeneration and increased scalp fat.
22 citations
,
July 2012 in “International Journal of Trichology” Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.
5 citations
,
December 2015 in “Dermatologic Therapy” Using a certain drug on the skin can help prevent hair loss caused by pulling on the hair.
7 citations
,
January 2012 in “International journal of trichology” Permanent hair removal with lasers may cure itchy black hair bristles on the back.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
5 citations
,
January 1983 in “PubMed” Human skin releases different steroids, with some coming from sebaceous glands and others from sweat glands.
January 2021 in “대한본초학회지(본초분과학회지)” Achyranthis Radix ethanol extract helps hair grow.
53 citations
,
January 2006 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Reduced AR gene methylation may cause early pubic hair growth in girls.
2 citations
,
January 2007 in “Actas Dermo-Sifiliográficas” Two cases of hairy elbows syndrome were described, with normal skin texture and symmetrical hair growth.
1 citations
,
January 2018 in “International Journal of Trichology” Circle hairs are harmless, spiral-shaped body hairs that don't need medical treatment.