15 citations
,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
1 citations
,
April 2024 in “Journal of Cutaneous Pathology” Recurrent NICF is a rare skin condition with unclear causes, involving follicle inflammation and crystal deposits.
25 citations
,
January 1999 in “Journal of cutaneous laser therapy” Diode laser effectively treats pseudofolliculitis barbae.
August 2024 in “Postgraduate Medical Journal” A rare skin reaction from cancer treatment was successfully managed with topical treatments and antihistamines.
November 2025 in “Cureus” A young man had a rare skin condition causing hair loss and forehead lesions.
26 citations
,
August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
1 citations
,
January 2015 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Latanoprost eye drops caused excessive cheek hair growth and eyelash whitening in a woman.
36 citations
,
November 1990 in “The Journal of Dermatology” Dermal papillae enhance hair follicle growth and structure.
January 2026 in “Brazilian Journal of Development” Early diagnosis and surgery can improve symptoms of ovarian hyperthecosis in postmenopausal women.
21 citations
,
December 2015 in “European journal of cell biology” Tight junctions create a barrier in pig hair follicles that controls what can enter the skin.
135 citations
,
August 1994 in “Clinical Endocrinology” Most women with hirsutism or androgenic alopecia had polycystic ovaries, especially if they had irregular periods.
12 citations
,
May 2005 in “Current obstetrics and gynaecology/Current obstetrics & gynaecology” Hirsutism is too much hair growth in women like the pattern in men, often caused by high male hormones, and can be treated with hormone control and hair removal methods.
1 citations
,
June 2012 in “Actas Dermo-Sifiliográficas” Early and aggressive treatment of scarring alopecia is important to prevent further hair follicle damage.
2 citations
,
May 2014 in “PubMed” A 10-year-old boy was diagnosed with a rare scalp condition causing hair loss and treated with a topical cream.
1 citations
,
June 2021 in “Curēus” A woman with hair loss had a benign sweat duct tumor found during a scalp biopsy.
7 citations
,
January 2013 in “Indian dermatology online journal” A rare skin condition with dark, thick, warty patches and some hair loss was found in a newborn boy.
2 citations
,
October 2024 in “Archives of Dermatological Research”
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
10 citations
,
April 1979 in “American Journal of Veterinary Research” Canine circumanal glands develop from hair follicle sheath cells, not sebaceous glands, and lack exocrine ducts.
February 2022 in “CRC Press eBooks” Hair disorders include hair loss, excessive hair growth, and ingrown hairs, with various treatments available depending on the cause.
Spiny keratoderma is a rare skin condition with small spines on palms and soles, possibly linked to abnormal hair formation.
September 2025 in “Ukrainian Journal of Dermatology Venerology Cosmetology” Early diagnosis and treatment can stop hair loss and prevent scalp damage in pseudopelade of Brocq.
7 citations
,
October 2006 in “Medical hypotheses” UV light might cause excessive hair growth by increasing PGE2 in the skin.
78 citations
,
June 1989 in “The Journal of dermatologic surgery and oncology” Acne keloidalis is a chronic skin condition on the back of the neck in young black men, needing surgery for severe cases.
Pseudopelade is likely an independent disease due to its distinct features.
19 citations
,
December 2016 in “PLOS ONE” Early-stage skin cells help regenerate hair follicles, with proteins SDF1, MMP3, biglycan, and LTBP1 playing key roles.
59 citations
,
August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
32 citations
,
September 1996 in “Archives of Dermatological Research” 6 citations
,
September 1996 in “Archives of Dermatological Research”
71 citations
,
January 2019 in “International journal of biological sciences” Exosomes from dermal papilla cells help hair growth by making hair follicle stem cells multiply and change.