2 citations
,
July 2020 in “Giornale italiano di dermatologia e venereologia” A woman with frontal fibrosing alopecia experienced unusual hair growth after using a specific topical lotion.
30 citations
,
April 2017 in “European Journal of Cell Biology” CIP/KIP proteins help stop cell division and support hair growth.
5 citations
,
March 2001 in “Journal of biomechanics” Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
January 2013 in “Wool textile journal” July 2001 in “Pediatrics in review” The girl's increased hair growth and other symptoms were due to a hormone-secreting ovarian tumor, which was successfully treated with surgery.
21 citations
,
June 2004 in “Experimental Dermatology” Ber‐EP4 marks cells related to the secondary hair germ in hair follicles.
6 citations
,
May 2003 in “PubMed” Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
7 citations
,
May 2020 in “Trends in molecular medicine” The document concludes that the immune-inhibitory environment of the hair follicle may prevent melanoma development.
June 2011 in “European Journal of Pediatric Dermatology” An 11-year-old girl with hair thinning was diagnosed with monilethrix and early androgenetic alopecia.
6 citations
,
August 1937 in “Journal of the Society of Chemical Industry” March 2026 in “Journal of Investigative Dermatology”
4 citations
,
January 2012 in “Springer eBooks” The document concludes that signs of male and female pattern baldness include uneven hair thickness, yellow spots, skin discoloration around hair follicles, more thin and soft hairs, and many hair follicles with just one hair.
January 1999 in “Journal of Investigative Dermatology”
115 citations
,
August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
Daily hair care may cause holes in hair fibers.
5 citations
,
October 2012 in “CMAJ. Canadian Medical Association journal” The girl had harmless hair casts, not lice.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
88 citations
,
March 2004 in “Journal of Investigative Dermatology”
139 citations
,
July 1991 in “Journal of The American Academy of Dermatology” Understanding hair follicle anatomy helps diagnose hair disorders.
18 citations
,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
124 citations
,
April 1992 in “Journal of Endocrinology/Journal of endocrinology” Beard hair follicles have more androgen receptors than non-balding scalp hair follicles.
5 citations
,
June 2014 in “Pediatric dermatology” A baby girl grew extra hair from contact with her grandfather's hair medicine, but it went away after stopping exposure.
January 2016 in “Case reports in clinical medicine” A 6-year-old girl was diagnosed with a rare hair disorder called monilethrix.
Asian patients show different trichoscopy features compared to Caucasians, like thicker hair and different alopecia signs.
58 citations
,
April 2009 in “Dermatologic Surgery” Most women have a widow's peak and specific hairline features useful for designing hair restoration surgery.
157 citations
,
April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
January 2025 in “Surgical & Cosmetic Dermatology” Temporal triangular alopecia causes permanent hair loss and can be managed with treatments like minoxidil or hair transplantation.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
March 2023 in “JAAD case reports”
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.