December 2025 in “Medical & Clinical Case Reports Journal” Corynebacterium minutissimum might cause hair loss on the scalp, but it's rarely diagnosed.
The FOS gene helps hair growth in Tan sheep.
27 citations
,
October 2002 in “International Journal of Dermatology” Trichostasis spinulosa causes itchy bumps on young adults' skin.
12 citations
,
March 1981 in “International Journal of Dermatology” External factors like certain shampoos, bacterial infections, and parasites might cause hair defects similar to genetic conditions.
January 2011 in “Reactions Weekly” Long-term use of minoxidil may cause hair follicles to transform into noticeable terminal hairs, leading to trichostasis spinulosa.
8 citations
,
July 2018 in “European Journal of Dermatology” A medication may help with hair growth in psoriasis, and a skin condition might be linked to a specific bacteria.
108 citations
,
July 2002 in “Molecular and cellular biology” Overexpressing Dsg3 in mice skin causes excessive cell growth and abnormal skin development.
January 2019 in “Global Dermatology” Genetic hair shaft abnormalities can be seen with microscopes and often affect scalp hair.
71 citations
,
May 1996 in “Journal of Investigative Dermatology” Ornithine decarboxylase is crucial for hair growth regulation in mice.
8 citations
,
July 2015 in “International Journal of Dermatology” A new DSG4 gene mutation causes hair defects in a young girl.
60 citations
,
September 2010 in “Journal of the American Academy of Dermatology” Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.
55 citations
,
May 2007 in “Australasian journal of dermatology” Two boys developed a viral skin infection during chemotherapy, which resolved with improved immune function.
September 2024 in “Journal of the American Academy of Dermatology” Low-dose oral minoxidil helps hair regrowth in COVID-19-related hair loss with few side effects.
1 citations
,
July 2018 in “CMAJ. Canadian Medical Association journal” A three-year-old girl has hair loss despite treatment with selenium sulfide shampoo and anti-fungal medication.
April 2022 in “Microbiology and Immunology” A specific DNA pattern in Malassezia restricta may be linked to hair loss in men.
November 2025 in “F1000Research” Certain fungi may contribute to hair loss in cynomolgus macaques.
30 citations
,
December 2001 in “Experimental dermatology” Gonadal hormones significantly affect the severity of alopecia areata in mice.
2 citations
,
December 2007 in “Microbial pathogenesis” Anthrax bacteria can infect and destroy hair follicles in mice, but the immune system eventually clears the infection.
13 citations
,
March 2000 in “Veterinary Dermatology” Dogs have a skin condition like human pseudopelade, causing hair loss that doesn't improve with treatment.
15 citations
,
May 2008 in “British Journal of Dermatology” Chronic scalp inflammation can turn into cancer, so regular check-ups are important.
21 citations
,
January 2010 in “International journal of trichology” Trichoscopy can diagnose monilethrix, a genetic hair defect causing hair thinning and loss.
12 citations
,
December 2020 in “Archives animal breeding/Archiv für Tierzucht” EDA and EDAR are important for hair follicle development in cashmere goats and affect other related genes.
August 2023 in “Acta Scientific Paediatrics” A baby from an Indian family had a rare genetic disorder causing no scalp or body hair due to a specific gene deletion.
September 2023 in “International Journal of Trichology” Early treatment of Folliculitis Decalvans in children can improve inflammation and partially regrow hair.
A 5-year-old boy grew too much hair after using minoxidil, but it went away after stopping the treatment.
October 2025 in “Pediatric Dermatology” A 16-year-old boy's facial condition improved with doxycycline, suggesting an immune response to hair follicle damage.
April 2024 in “Indian dermatology online journal” A rare hair follicle disorder can cause itchy, bluish-black bumps on the body.
2 citations
,
August 1994 in “Archives of dermatology” A 19-month-old boy with a rare hair disorder showed mild improvement with treatment, but his family chose gentle hair care due to limited success.
1 citations
,
November 2023 in “Journal of Investigative Dermatology”
Minoxidil nanoliposomes boost hair growth and reduce scalp bacteria better than regular minoxidil.