April 2017 in “Journal of Dermatological Science” Asymmetric hair follicle differentiation causes the unique shape of kinky hair.
July 2024 in “LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)” Adipose tissue and eccrine gland displacement are common in certain alopecias but don't help differentiate between them.
2 citations
,
January 2017 in “Przegla̧d dermatologiczny” Two trichoscopic patterns found in hair loss: diffuse fibrotic and androgenetic alopecia, affecting treatment choice and regrowth chances.
September 1997 in “Journal of the European Academy of Dermatology and Venereology” Hirsute women with ovarian-sourced hirsutism are more likely to have irregular periods, with higher BMI and altered hormone ratios.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” The study concluded that a 'Swiss cheese' pattern in hair follicles is a useful sign for diagnosing alopecia areata.
December 2025 in “Reports of Morphology” Men with alopecia areata have different body fat distribution compared to healthy men.
35 citations
,
November 2010 in “Journal of Cutaneous Pathology” Dilated follicular infundibula and increased catagen/telogen follicles are key indicators for diagnosing alopecia areata.
November 2021 in “CRC Press eBooks” Fibrosing alopecia in a pattern distribution is a new type of scarring hair loss that resembles common baldness and an autoimmune skin disease.
Mirror-image twins can have alopecia areata on opposite sides of their heads.
Digit ratio likely doesn't predict male hair loss.
April 2023 in “Journal of Investigative Dermatology” The study suggests fibrosing alopecia in a pattern distribution has distinct features and may vary by race.
20 citations
,
August 2009 in “Journal of The European Academy of Dermatology and Venereology” Occipital scalp affects female hair loss; terminal/vellus ratio helps diagnose androgenetic alopecia.
December 2023 in “JEADV Clinical Practice” Brownish halos around axillary hair can help diagnose frontal fibrosing alopecia.
October 1995 in “Pediatric Research” 13 citations
,
June 2012 in “European journal of medical genetics” Identical twins had different symptoms because one had more cells with an extra chromosome fragment in different tissues.
30 citations
,
May 2005 in “Pediatric dermatology” Some families have a genetic condition where they are born with irregular scalp defects.
20 citations
,
July 2005 in “Experimental dermatology” The fuzzy gene is crucial for controlling hair growth cycles.
66 citations
,
August 1999 in “The Journal of Clinical Endocrinology & Metabolism” Women with acromegaly often have irregular periods due to hormone imbalances and growth hormone effects.
7 citations
,
August 2013 in “Journal of the European Academy of Dermatology and Venereology” Less than a quarter of alopecia areata cases were unusual forms or had paradoxical regrowth.
2 citations
,
October 2017 in “Journal of The American Academy of Dermatology” Focal atrichia helps diagnose female pattern hair loss.
September 2021 in “CRC Press eBooks” Fibrosing alopecia in a pattern distribution is a type of hair loss that may often be overlooked, especially in men.
March 2023 in “Journal of Cosmetic Dermatology” A woman's progressive hair loss was correctly diagnosed as a rare condition called fibrosing alopecia in a pattern distribution after initially being mistaken for a more common type.
1 citations
,
June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
8 citations
,
January 2013 in “International journal of trichology” Two people had unusual ring-shaped hair loss due to an autoimmune disorder.
60 citations
,
October 2009 in “Dermatology” Alopecia areata may appear differently depending on the individual's type of hair loss and scalp condition.
1 citations
,
March 2021 in “Frontiers in Medicine” Female pattern hair loss shows similar characteristics in both genders and should be classified by hair loss patterns, not gender.
5 citations
,
October 2018 in “Dermatologic therapy” Recognizing congenital triangular alopecia is crucial to avoid unnecessary treatments.
July 2024 in “Clinical Case Reports” Recognizing rare hair loss patterns in young females can improve understanding and treatment.
May 2025 in “Journal of Clinical Medicine” Women with alopecia areata have poor blood flow, possibly due to nerve inflammation.
September 2025 in “Biology of Sex Differences” Females have a higher lifetime risk of alopecia areata than males.