East and Southeast Asians typically have less dense but thicker, straight black hair.
4 citations
,
April 1983 in “The Journal of Dermatology” A 15-year-old girl with hypothyroidism had excess hair and skin issues due to blocked hair follicles.
April 2023 in “Journal of the American Psychoanalytic Association” Male pattern hair loss can cause significant emotional distress for men.
1 citations
,
January 2013 in “Pediatric Annals” The girl's thin hair was due to loose anagen syndrome, not other hair loss types.
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
July 2025 in “Journal of the American Academy of Dermatology” Hair diameter diversity helps assess hair loss, but its standard measure varies by individual and ethnicity.
28 citations
,
November 2018 in “Journal of structural biology” Different populations have distinct hair structures related to their ancestry.
2 citations
,
January 2010 Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.
Asian patients show different trichoscopy features compared to Caucasians, like thicker hair and different alopecia signs.
December 2020 in “Dermatology practical & conceptual” Trichoscopy helped diagnose a teenage girl's hair loss as monilethrix.
12 citations
,
February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
10 citations
,
January 2019 in “Skin Research and Technology” Southern Chinese women with female pattern hair loss have less, thinner hair and smaller hair follicles.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
January 2026 in “Forum Dermatologicum” Thorough hair examination is crucial for accurate diagnosis and treatment.
1 citations
,
April 2012 in “Informa Healthcare eBooks” The conclusion is that detailed clinical descriptions help pathologists diagnose hair loss conditions more accurately.
10 citations
,
January 2011 in “Journal of biomedical optics” OCT is a reliable, noninvasive way to measure hair thickness.
14 citations
,
September 2019 in “Forensic Science International Genetics” Hair keratin proteins can be reliably identified in hair as short as 0.12 cm, with 0.5 to 2 cm being the best length for analysis.
10 citations
,
January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
6 citations
,
April 2006 in “Lupus” People with lupus and rheumatoid arthritis have thinner hair than healthy people.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
65 citations
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May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
2 citations
,
July 2019 in “Indian dermatology online journal” A 17-year-old girl and her brothers have a rare hair condition with long eyelashes, thick eyebrows, and easily pluckable hair.
254 citations
,
January 2007 in “Chemical Society Reviews” Hair is a complex protein fiber with unique properties useful for developing hair products.
September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
24 citations
,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
January 2014 in “International Journal of Trichology” Hair is culturally and economically valuable, and its weight is now used to measure the effectiveness of hair growth treatments.
33 citations
,
August 2013 in “British Journal of Dermatology” Lack of small, fine hair on the front hairline is a key sign of frontal fibrosing alopecia.
Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.
4 citations
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April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.