5 citations
,
May 2021 in “BMC surgery” A man's unusual scalp folds caused by a skin condition were treated with surgery and remained unchanged two years later.
1 citations
,
March 2017 in “Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego” Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.
6 citations
,
January 2000 in “Dermatology” A girl's severely tangled hair couldn't be fixed and had to be cut due to a rare condition called plica neuropathica.
3 citations
,
January 2021 in “Veterinary dermatology” A litter of cats had a hair condition similar to a mouse mutation, leading to hair loss and abnormal hair and skin.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
10 citations
,
January 1971 in “The American midland naturalist” A simple method can show hair's surface pattern.
75 citations
,
August 2011 in “Journal of Investigative Dermatology” Forming spheres boosts the ability of certain human cells to create hair follicles when mixed with mouse skin cells.
2 citations
,
March 2005 in “International Journal of Cosmetic Science” Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.
9 citations
,
February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
3 citations
,
July 2019 in “Fibers And Polymers/Fibers and polymers” 28 citations
,
June 2007 in “Journal of Cutaneous Pathology” IRS premature desquamation is not unique to CCCA and occurs in various scarring alopecias.
2 citations
,
September 2010 in “Journal of the Korea Academia-Industrial cooperation Society” Using 2% collagen in perms reduces hair damage while keeping curls.
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
July 2025 in “Journal of Medical Science And clinical Research” A 21-year-old male has a rare scalp condition with excessive skin folds.
6 citations
,
December 2018 in “International Journal of Cosmetic Science” Mexican women's hair is between Asian and Caucasian hair in thickness and shape, with varied strength and some damage.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
January 2002 in “Linchuang pifuke zazhi” A young woman had a rare scalp tumor usually found in older women.
20 citations
,
October 1996 in “Journal of the American Academy of Dermatology” May 2026 in “Jurnal Pendidikan Kimia Fisika dan Biologi” Rebonding damages hair cuticles, causing erosion and cracks.
June 1996 in “Journal of Dermatological Science” January 2009 in “Chinese journal of Clinical Medicine” 5 citations
,
November 2012 in “Journal of the American Academy of Dermatology” A 3-year-old girl has short anagen syndrome, causing her hair to stay short.
36 citations
,
November 1990 in “The Journal of Dermatology” Dermal papillae enhance hair follicle growth and structure.
19 citations
,
August 1993 in “Journal of Cutaneous Pathology” Alopecia causes smaller hair follicles and affects growth-related structures.
13 citations
,
January 2012 in “Dermatology” Eruptive vellus hair cysts are rare, benign skin lesions that are hard to treat.
94 citations
,
August 1975 in “Journal of Cutaneous Pathology” Male pattern baldness involves smaller hair follicles, larger oil glands, and other tissue changes, but not major blood supply issues.
7 citations
,
June 2018 in “Journal of the American Academy of Dermatology” The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.