24 citations
,
July 2014 in “Journal of Investigative Dermatology” Nagashima-type palmoplantar keratosis in Asians is caused by a SERPINB7 gene mutation.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Mutations in keratin genes cause skin, hair, and nail disorders, with future treatments possible.
41 citations
,
December 2008 in “Pediatric Dermatology” Trichoscopy can diagnose Netherton syndrome without pulling hairs.
5 citations
,
June 2008 in “British Journal of Dermatology”
February 2026 in “Indian Journal of Dermatology” Upadacitinib may effectively treat twenty-nail dystrophy without causing pain.
1 citations
,
August 1981 in “The Journal of Dermatology” All major hair defects involve cuticle abnormalities.
8 citations
,
August 2019 in “ACR Open Rheumatology” Defective repair processes may cause immune activation and inflammation in psoriatic disease.
28 citations
,
July 1980 in “British Journal of Dermatology” The hair disorder was caused by abnormal protein formation, making hair easily damaged.
March 2003 in “中華皮膚科醫學雜誌” Trichothiodystrophy causes unusual hair and developmental issues.
7 citations
,
October 2016 in “American Journal of Dermatopathology” The man died from lung cancer, not the rare nail tumor.
February 2023 in “Indian journal of private psychiatry/Indian Journal of Private Psychiatry” Valproic acid can rarely cause reversible nail discoloration.
November 2022 in “Indian Journal of Dermatology/Indian journal of dermatology” Valproic acid can cause dark lines on nails.
13 citations
,
September 2011 in “Archives of dermatology” A patient with steroid sulfatase deficiency had a unique hair pattern and a brain malformation not previously linked to the condition.
1 citations
,
July 2023 in “Clinical Cosmetic and Investigational Dermatology” Familial dyskeratotic comedones are a rare, benign skin disorder that is hard to treat.
29 citations
,
August 2011 in “PubMed” Hair and nail proteins, mainly keratins, are crucial for structure and can indicate health issues.
April 2016 in “Journal of the American Academy of Dermatology”
March 2025 in “The Open Dermatology Journal” Trichorrhexis nodosa is common hair breakage, often due to styling, and new treatments are being explored.
44 citations
,
August 2010 in “Lupus” Lupus can affect the scalp and nails, often causing hair loss and nail damage, and needs early aggressive treatment to prevent permanent damage.
Spiny keratoderma is a rare skin condition with small spines on palms and soles, possibly linked to abnormal hair formation.
1 citations
,
April 2020 in “Asian Journal of Medicine and Biomedicine” A child's toe was saved from a rare condition where hair tightly wrapped around it by performing surgery.
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.
9 citations
,
October 2014 in “Experimental and Clinical Endocrinology & Diabetes” Knuckle Acanthosis Nigricans is common in Latin American youth and may indicate early insulin resistance, especially in those with normal weight.
6 citations
,
January 2018 in “Dermato-endocrinology” Darkened knuckles can be an early sign of insulin resistance.
September 2023 in “Journal of the American Academy of Dermatology” Podiatrists perform nearly all nail excisions in the US.
July 2025 in “Journal of Investigative Dermatology” Minoxidil may improve nail growth and appearance.
16 citations
,
February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
53 citations
,
September 2004 in “American journal of medical genetics. Part C, Seminars in medical genetics” Mutations in keratin genes cause cell fragility and various skin disorders.
6 citations
,
March 2016 in “PLoS ONE” The patient's hair was thinner and had fewer lipids due to a genetic mutation.
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.
5 citations
,
July 2009 in “Clinical and experimental dermatology”