November 2023 in “International Journal of Trichology” Alopecia areata may be linked to kidney issues, but more research is needed.
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.
26 citations
,
December 2011 in “Journal of Investigative Dermatology” New gene identification techniques have improved the understanding and classification of inherited hair disorders.
53 citations
,
May 1996 in “The Journal of Clinical Endocrinology & Metabolism” Different mutations in the 5 alpha-reductase-2 gene were found in affected individuals in the Dominican Republic, suggesting no common ancestry.
18 citations
,
February 2001 in “Der Hautarzt” A woman with myotonic dystrophy had multiple skin tumors on her scalp, suggesting a genetic link.
119 citations
,
November 2016 in “American journal of human genetics” Mutations in three genes cause Uncombable Hair Syndrome, leading to frizzy hair that can't be combed flat.
2 citations
,
May 1991 in “PubMed” Nevus comedonicus is a rare skin condition causing dark bumps, treatable with retinoic acid or surgery.
2 citations
,
December 2013 in “Veterinary dermatology” Three dogs with a rare skin condition improved with treatment.
7 citations
,
August 2008 in “Cases Journal” A hair tightly wrapped around a toddler's toe caused severe crying and was treated by surgery.
17 citations
,
December 2009 in “Journal of Pediatric Orthopaedics” Two babies needed surgery to remove hair tightly wrapped around their toes to prevent serious injury.
3 citations
,
April 2012 in “Bioinformation” Two specific SNPs in the TRPS1 gene cause excessive hair growth by altering the protein's structure.
5 citations
,
September 2015 in “BMC Medical Genetics” The EDAR gene mutation leads to thinner and more deformed hair shafts.
Polarized microscopy helps identify hair irregularities in genetic disorders.
37 citations
,
January 2008 in “Gynecological Endocrinology” Shorter CAG repeats in a specific gene may increase male hormone activity and symptoms like acne and excess hair in women with PCOS.
53 citations
,
January 2011 in “Diabetes” People with PCNT mutations often develop severe insulin resistance and early-onset diabetes during childhood or adolescence.
8 citations
,
January 2006 in “Dermatology Online Journal” The girl's skin condition is benign but challenging to treat due to its size and location.
November 2024 in “Journal of Investigative Dermatology” Genetic defects in the Wnt/PCP pathway may cause congenital yellow nail syndrome.
36 citations
,
March 2014 in “Cell death and differentiation” Disrupting β-catenin signaling in certain cells causes anorectal malformations.
39 citations
,
February 2011 in “American Journal of Dermatopathology” Onychomatricoma is a unique nail tumor that mimics the entire nail unit and is not related to other hair-related tumors.
4 citations
,
January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
July 2024 in “Journal of Investigative Dermatology” Pediatric patients with dystrophic epidermolysis bullosa face more hospital admissions, procedures, and complications than others.
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.
April 2020 in “International journal of research in dermatology” An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
5 citations
,
April 2011 in “The Lancet” Untreated congenital adrenal hyperplasia can lead to complications like stroke and needs glucocorticoid treatment.
17 citations
,
May 2007 in “British Journal of Dermatology” Gomez–Lopez–Hernandez syndrome can cause focal hair loss and developmental delays but some children can still function well and excel in school and sports.
19 citations
,
February 2013 in “Journal of Investigative Dermatology” Touch domes in human skin are complex sensory structures not directly linked to hair.
December 2025 in “Clinical Cosmetic and Investigational Dermatology” Early diagnosis and multidisciplinary care, including orthopedic surgery, can prevent long-term disability in IFAP syndrome.
6 citations
,
October 2009 in “Veterinary Dermatology” Canine claws have complex structures with different keratin types, similar to hair and nails.
April 2020 in “Journal of the Endocrine Society” A patient with untreated congenital adrenal hyperplasia had large benign tumors in her adrenal glands removed, improving her symptoms.
43 citations
,
April 2010 in “Clinical genetics” Truncating mutations in the C2orf37 gene cause Woodhouse–Sakati syndrome.