10 citations
,
April 1976 in “Archives of Dermatology” A woman's significant hair loss was linked to rapid weight loss and hormone injections.
40 citations
,
February 1946 in “Canadian Journal of Research/Canadian journal of research” Hereditary factors cause hair loss in mice by affecting skin and hair follicle structure.
3 citations
,
May 2019 in “Australasian Journal of Dermatology” Hair loss in Cronkhite-Canada syndrome may be caused by autoimmune factors, not just stress or malabsorption.
December 1972 in “Archives of Dermatology” The girl has an inflammatory type of scarring hair loss.
2 citations
,
June 2016 in “PubMed” An 11-year-old girl with compulsive hair pulling was successfully treated with therapy and medication.
2 citations
,
September 1978 in “Anatomia Histologia Embryologia” Alkaline phosphatase activity in Beagle dog hair follicles is weakest in anagen and strongest in telogen.
July 2024 in “Indian Journal of Skin Allergy” Patchy hair loss from post-herpetic neuralgia can mimic trichotillomania but requires different treatment.
2 citations
,
September 1980 in “Experientia” Polyethylene alanine caused hair loss in young lab animals but not in adults, with hair regrowth occurring within 20 days.
12 citations
,
March 2004 in “Journal of Investigative Dermatology” January 2022 in “The Pan African medical journal” Hypertrichosis causes excessive hair growth and needs psychological support due to its impact on self-esteem.
September 2023 in “Journal of the American Academy of Dermatology” 32 citations
,
May 1986 in “Archives of Dermatology” The condition is likely inherited in an autosomal-dominant pattern.
93 citations
,
May 1990 in “The EMBO Journal” Mice with extra sheep genes had hair that fell out and regrew in cycles.
July 2025 in “INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH” Trichoscopy is crucial for diagnosing alopecia areata by identifying specific hair features.
4 citations
,
January 2009 in “Acta agriculturae Serbica” Selenium imbalance can cause hair loss and skin issues.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Thinner hair follicle structures are linked to non-scar alopecia.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
5 citations
,
March 1981 in “PubMed” A girl grew extra hair in areas where she had insect bites.
June 2008 in “Springer eBooks” The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."
8 citations
,
July 2014 in “Anais Brasileiros de Dermatologia” A man's scalp condition was misidentified as hair loss dots but was actually a common follicular disorder.
January 2023 in “Indian dermatology online journal” Skin problems after waxing led to a sarcoidosis diagnosis.
5 citations
,
November 2009 in “Revista médica de Chile” Hair growth cycles in Chileans vary seasonally, with more hair resting in summer and growing in winter.
8 citations
,
January 2003 in “Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy” Chemotherapy may cause recurring hair loss due to an autoimmune response.
41 citations
,
June 2010 in “Journal of Investigative Dermatology” New cells are added to the hair's dermal papilla during the active growth phase.
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.
85 citations
,
February 1989 in “Journal of The American Academy of Dermatology” Children with loose anagen hair have easily pluckable hair due to root sheath problems, and it might improve without treatment.
2 citations
,
May 2022 in “International journal of trichology” Plica neuropathica is a tangled hair condition that may be caused by hair damage or psychiatric issues and is treated by cutting the hair and addressing mental health.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
46 citations
,
August 1977 in “Journal of Morphology” The big-clawed shrew's sinus hair follicles are highly specialized for sensing vibrations.