July 2019 in “Journal der Deutschen Dermatologischen Gesellschaft” A mother and daughter have a rare genetic hair loss disorder with no effective treatment.
May 2018 in “European Journal of Dermatology” The first Japanese family with Marie Unna hereditary hypotrichosis showed hair condition improvement in a child and highlighted the risk of misdiagnosis.
A new genetic mutation was found causing hair and eye issues in a boy.
August 2016 in “Journal of the American Academy of Dermatology” The infant likely has Hay-Wells syndrome and needs genetic testing and heart screening.
April 2016 in “British Journal of Dermatology” Eyelashes are important for looks and eye protection, and more people are treating sparse eyelashes; more research is needed to understand eyelash biology and improve treatments.
May 2014 in “JAMA Dermatology” Mother and son diagnosed with a rare genetic hair loss condition with no effective treatment.
November 2011 in “Pediatric dermatology” Marie-Unna Hereditary Hypotrichosis is a rare genetic condition causing sparse hair growth, requiring specific recognition for proper care.
January 1962 in “Archives of Dermatology” A 5-year-old girl has lipoid proteinosis, causing voice issues, hair thinning, skin lesions, and tongue movement problems.
30 citations
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May 2004 in “Journal der Deutschen Dermatologischen Gesellschaft” The document concludes that early diagnosis and treatment are crucial for children with hair loss to prevent permanent damage, although not all conditions can be effectively treated.
1 citations
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January 2025 in “Discrete and Continuous Dynamical Systems - B” Sparse hairless patches can develop and stabilize in alopecia areata under certain conditions.
11 citations
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September 2010 in “American Journal of Medical Genetics - Part A” A Turkish family with sparse hair and eyebrow loss has a mutation in the U2HR gene linked to Marie Unna hereditary hypotrichosis.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
44 citations
,
August 2004 in “Journal of Investigative Dermatology” A gene deletion in DSG4 causes sparse hair in some Pakistani families.
33 citations
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October 2005 in “Journal of Investigative Dermatology” A specific gene mutation causes sparse, brittle hair in a family.
8 citations
,
June 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” A boy's skin fragility and sparse hair were caused by a genetic mutation affecting skin cell adhesion.
7 citations
,
August 2019 in “Clinical and Experimental Dermatology” The Mona Lisa's high forehead and sparse eyebrows might be due to a hair loss condition or Renaissance fashion trends, but the actual reason is unknown.
4 citations
,
January 2018 in “International Journal of Trichology” A rare genetic disease causes sparse hair and early blindness due to a gene mutation.
27 citations
,
September 2017 Pubic hair transplantation can improve self-esteem in those with sparse pubic hair.
21 citations
,
April 2004 in “Australasian Journal of Dermatology” A 3-year-old girl has a rare condition causing sparse hair and nail issues, with minimal improvement from treatment.
2 citations
,
February 2016 in “British Journal of Dermatology” Bimatoprost solution 0.03% is effective for treating sparse eyelashes.
November 2024 in “JAAD Case Reports” A 21-month-old boy has a rare genetic disorder causing sparse hair due to an LSS gene mutation.
6 citations
,
June 2013 in “British Journal of Dermatology” Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.
1 citations
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April 2024 in “Dermatology Practical & Conceptual” Hair loss in male frontal fibrosing alopecia may spare areas covered by a wristwatch.
13 citations
,
August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Mutations in the DSG4 gene cause fragile, sparse hair in humans, mice, and rats.
May 2025 in “Dermatology Reports” A genetic mutation in the LIPH gene causes a rare hair disorder with sparse, curly hair.
January 2026 in “Cosmoderma” A 9-year-old girl has a rare hair disorder causing beaded, sparse hair.
June 2001 in “European Journal of Dermatology” A 54-year-old woman experienced progressive hair loss starting in adolescence, leading to sparse scalp hair and almost no eyebrows or eyelashes.
115 citations
,
September 2005 in “International Journal of Dermatology” Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.
3 citations
,
January 2004 in “Journal of Wildlife Diseases” A deer fawn in South Dakota was the first cervid found with congenital hypotrichosis, a condition causing sparse or missing hair.
2 citations
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July 2025 in “Journal of the European Academy of Dermatology and Venereology” The girl in "The Girl with a Pearl Earring" might have had alopecia areata, causing her lack of eyebrows and sparse eyelashes.