10 citations
,
October 2016 in “Experimental Dermatology” Nail stem cells and Wnt signaling are important for fingertip regeneration but not sufficient for regenerating more complex limb structures.
48 citations
,
May 1999 in “International Journal of Dermatology” Alopecia areata is an unpredictable autoimmune hair loss condition, treated based on severity, with half of patients regrowing hair within a year without treatment.
26 citations
,
January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
4 citations
,
October 2011 in “Pediatric dermatology” Head lice can cause unusual patchy hair loss.
24 citations
,
September 1997 in “PubMed” Loose anagen hair can appear at any age and may improve over time.
1 citations
,
January 2020 in “Skin appendage disorders” A family was found with both Trichorhinophalangeal syndrome and Loose Anagen Syndrome, suggesting a genetic connection.
19 citations
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August 2008 in “Journal of The European Academy of Dermatology and Venereology” Bald areas have lower cell growth, more DNA damage, and increased cell death.
164 citations
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November 1989 in “Clinical and Experimental Dermatology” Juvenile alopecia areata is more severe and has a worse prognosis than maturity-onset alopecia areata.
39 citations
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July 2015 in “British Journal of Dermatology” The pseudo 'fringe sign' can also appear in frontal fibrosing alopecia, not just in traction alopecia, showing that this condition may be more common than thought.
34 citations
,
June 1992 in “Journal of Cutaneous Pathology” Harlequin ichthyosis involves abnormal skin cell structures and giant mitochondria, affecting skin and hair.
November 2020 in “International journal of contemporary pediatrics” Two siblings had a rare immune disorder caused by a FOXN1 gene mutation.
24 citations
,
July 2014 in “Journal of Investigative Dermatology” Nagashima-type palmoplantar keratosis in Asians is caused by a SERPINB7 gene mutation.
158 citations
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December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
84 citations
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June 1970 in “Journal of Investigative Dermatology”
Histopathological confirmation is crucial for accurately diagnosing challenging alopecia areata cases.
42 citations
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September 2003 in “Journal of Investigative Dermatology” A missing mK6irs1 gene causes hair loss in mice.
10 citations
,
May 1974 in “American journal of diseases of children” The girl had a rare disorder causing mental and physical symptoms, with weak hair and unclear neurological issues.
January 2022 in “Dubai diabetes and endocrinology journal/Dubai diabetes & endocrinology journal” A 16-year-old girl with HAIR-AN syndrome was treated with lifestyle changes and medications to manage her condition.
September 2024 in “Dermatologica Sinica” Ponatinib can cause a rare skin reaction that resolves with topical treatment and temporary drug discontinuation.
14 citations
,
January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
6 citations
,
January 2016 in “Skin appendage disorders” A man with rare Lichen Planopilaris lost body hair, not scalp hair, and treatment stopped itching but didn't regrow hair.
Trichodysplasia spinulosa can occur after a heart transplant due to immunosuppressive drugs.
1 citations
,
August 2023 in “Clinical Cosmetic and Investigational Dermatology” Exclamation mark hairs help distinguish syphilitic alopecia from alopecia areata.
4 citations
,
November 2025 in “Nature Reviews Disease Primers” Herpes zoster can cause lasting nail and hair damage.
May 1979 in “Archives of Dermatology” Alopecia can be linked to autoimmune issues, vitiligo, nail problems, and sometimes cancer treatments.
March 2026 in “South Asian Research Journal of Medical Sciences” Removing keratin plugs and ingrown hairs improved scalp inflammation.
8 citations
,
September 1981 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin deficiency in pigs causes hair loss, skin issues, and weak claws.
Calcium hydroxide in an ayurvedic product caused hair breakage.
2 citations
,
November 1955 in “Archives of dermatology” Cortisone and ACTH didn't help her hair or nails, but her hair grew back on its own.