The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
The patient improved with treatment for depilating folliculitis.
1 citations
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February 2022 in “PLOS ONE” Hair loss is more common in male Chinese college freshmen, and it's linked with rosacea but doesn't affect their quality of life.
June 2022 in “Journal of Dermatology Research” Using 448-kHz Capacitive-Resistive Electrothermal Therapy can help increase hair density and prevent hair loss in women.
28 citations
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January 2012 in “International Journal of Trichology” Genetics affect early female hair loss, severity depends on duration, and low ferritin levels not significant.
October 2021 in “Journal of Investigative Dermatology” Poor blood supply in hair follicles is linked to nutrient deficiency in patients with female pattern hair loss, and adding more nutrients could potentially fix this.
323 citations
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November 1984 in “Journal of Investigative Dermatology”
7 citations
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October 2018 in “Journal of Craniofacial Surgery” About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
112 citations
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July 2008 in “Dermatologic Therapy” Folliculitis decalvans is a rare scalp condition causing scarring hair loss, treated with long-term antibiotics and other medications, but it often comes back and is hard to manage.
May 2025 in “IP Indian Journal of Clinical and Experimental Dermatology” Trichoscopy is useful for early detection and monitoring of female pattern hair loss.
5 citations
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September 2021 in “Journal of The American Academy of Dermatology” Most men with Frontal fibrosing alopecia also lose facial hair and the condition may be linked to hormone levels and sunscreen use.
1 citations
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May 2002 in “British Journal of Dermatology” Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.
January 2026 in “Scientific Reports” Certain blood cell ratios are higher in kids with alopecia areata and might help predict the disease.
5 citations
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July 2009 in “Clinical and experimental dermatology” Treating hair with 1M sodium hydroxide increases its friction, making it better for small medical knots.
2 citations
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February 2019 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Tufted folliculitis is common in patients with folliculitis decalvans.
77 citations
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April 2005 in “Journal of Investigative Dermatology” Repetin is a protein involved in skin and hair development, binding calcium and compensating for other proteins when needed.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Scarred skin in lichen planopilaris loses immune cells due to a decrease in a specific protein in skin cells.
5 citations
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March 2004 in “Journal of The American Academy of Dermatology” Patients with systemic lupus erythematosus and hair loss had non-scarring alopecia with fewer hair follicles, and direct immunofluorescence did not help identify lupus.
December 2013 in “대한피부과학회지” Korean women with female pattern hair loss have higher levels of ferritin, testosterone, and vitamin D than average.
Different types of hair loss and gender affect facial heat patterns, which may help diagnose and treat hair loss.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
2 citations
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January 2014 in “Turkish Journal of Medical Sciences” TrichoScan effectively diagnoses different types of hair loss and is linked to low iron stores in patients.
53 citations
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September 1999 in “Journal of Synchrotron Radiation” Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.
21 citations
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December 2012 in “Biological Trace Element Research” Higher hair levels of calcium and magnesium are linked to higher body weight, while lower levels are linked to worse metabolic health.
2 citations
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May 2015 in “PloS one” Hair follicle pores help cell survival and growth, even after radiation.
28 citations
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March 2010 in “Histochemistry and Cell Biology” Different markers are found in stem cells of the scalp's hair follicle bulge and the surrounding skin.
March 2026 in “Mendeley Data” rwSALT provides precise hair regrowth measurement from scalp photos.
73 citations
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April 2010 in “Anais Brasileiros de Dermatologia” Dermoscopy helps diagnose and monitor treatment for hair loss from scarring conditions like discoid lupus and lichen planopilaris.