6 citations
,
December 2011 in “Clinical and Experimental Dermatology” A woman developed rare, unexplained curly hair on her scalp and eyelashes.
34 citations
,
December 1984 in “Journal of Cutaneous Pathology” Monilethrix hair issues are due to problems in the hair's internodes.
16 citations
,
April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
January 2016 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” A 6-group geometric classification of human scalp hair is more reliable and objective for testing than an 8-group system.
20 citations
,
September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
Otter rabbit, mink, and blue fox fur can be identified by their unique hair structures.
2 citations
,
March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
10 citations
,
June 2019 in “Cosmetics” Mixed-race individuals have hair with varied shapes and more root damage.
35 citations
,
January 2000 in “Journal of comparative neurology” Rat vibrissae have sensory terminals with specific structures that help detect hair movements.
May 2026 in “Journal of Investigative Dermatology” 33 citations
,
July 2007 in “Journal of cell science” Miz1 is essential for proper hair structure and growth.
May 2006 in “The American journal of medicine” The man had persistent itchy bumps on his cheeks and neck despite trying different shaving products.
16 citations
,
October 1992 in “Journal of cutaneous pathology” Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.
December 2025 in “International Journal of Advanced Biochemistry Research” Malvi cattle hair varies in color and pattern across different body regions.
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.
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
18 citations
,
January 2015 in “Journal of medical genetics” New genes linked to woolly hair have been found, which could help treat it and change hair texture.
18 citations
,
April 2010 in “Langmuir” Human hair surface varies in wettability, showing daily and monthly patterns.
March 2026 in “International Journal of Advanced Biochemistry Research” German shepherd hair varies in color and pattern but is flat with a consistent internal structure.
21 citations
,
June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
1 citations
,
August 2020 The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.
26 citations
,
August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
4 citations
,
October 2018 in “Cell Stem Cell” Hox genes control hair growth patterns in mammals by regulating stem cell activity in the skin.
August 2003 in “Dermatologic Surgery” Craig Ziering created a system to classify scalp hair patterns, important for improving hair restoration surgery results.
9 citations
,
June 2014 in “British Journal of Dermatology” The study found that balding scalps have more thin hairs and larger oil glands, which might contribute to skin conditions related to hair loss.
January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.
July 2025 in “Dermatologica Sinica” Glycyrrhizin may help regrow hair by activating a specific pathway.