Acne keloidalis nuchae causes scarring on the scalp, mainly in African American males, and early treatment is important to prevent lasting damage.
26 citations
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March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
48 citations
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July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
December 1987 in “Pediatric Dermatology” Hair bands are a new symptom of facio-genito-popliteal syndrome.
April 2024 in “Facial plastic surgery clinics of North America” Beard restoration is important for creating masculine looks and using beard hair can increase scalp hair coverage.
1 citations
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January 2019 in “PubMed” A woman developed a hair disorder after a bone marrow transplant, which improved with treatment.
22 citations
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February 2008 in “Journal of Dermatological Science” EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.
March 2026 in “Mendeley Data” rwSALT provides precise hair regrowth measurement from scalp photos.
February 2026 in “Clinical Cancer Research” The combined treatment helped prevent hair loss and promoted full hair regrowth in breast cancer patients after chemotherapy.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
December 2023 in “Expert Review of Endocrinology & Metabolism” New methods help diagnose skin conditions caused by too much male hormone in women, like acne, hair loss, and excess hair growth.
November 2021 in “Clinical, cosmetic and investigational dermatology” An elderly woman with cancer improved after treatment for a rare skin condition with coiled hairs.
1 citations
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November 2025 in “Journal of Health Psychology” Alopecia Areata patients experience higher social appearance anxiety due to visible hair loss.
4 citations
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March 2011 in “European Journal of Dermatology” Trauma can cause fat inflammation and abnormal hair growth.
40 citations
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January 2016 in “PLoS ONE” Shorter daylight increases hair growth in Cashmere goats.
14 citations
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June 2005 in “PubMed” A rare ear cyst contained hair fragments.
4 citations
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April 2018 in “The journal of pediatrics/The Journal of pediatrics” A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
September 1978 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry”
2 citations
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January 2023 in “Annals of Dermatology” A hairless patch on a boy's scalp from birth injury improved with minoxidil treatment.
January 2012 in “Open MIND” Oral minoxidil can cause painful skin bumps and scarring in some people.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” Alopecia areata is a hair loss condition that often starts before age 30 and can affect various body parts, with unpredictable hair regrowth chances.
November 2025 in “SKIN The Journal of Cutaneous Medicine” Baricitinib helps regrow scalp, eyebrow, and eyelash hair in teens with severe alopecia areata.
January 2022 in “Clinical Cases in Dermatology” A 22-year-old man has alopecia areata, an autoimmune hair loss condition, with various treatments available.
March 1956 in “Institutional Repositories DataBase (IRDB)” 36 citations
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July 1996 in “The journal of investigative dermatology/Journal of investigative dermatology” Mice with the 'lanceolate hair' mutation have abnormal hair and skin similar to human Netherton's syndrome.
April 2023 in “Medizinische Genetik” Male-pattern hair loss is largely influenced by genetics, with key genes identified.
16 citations
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November 1994 in “Developmental Biology” Retinoic acid causes gland formation instead of hair in mouse skin by altering epidermal and dermal interactions.
May 2023 in “Clinical and Experimental Dermatology” Alopecia areata has a high chance of persisting and relapsing, with a significant risk of total hair loss, especially if it starts in childhood.
November 2023 in “BMJ case reports” A man in his 30s had patchy hair loss on his leg due to primary follicular mucinosis.
15 citations
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January 2006 in “British Journal of Dermatology” A woman with skin eruptions and hair loss improved significantly with ointment treatment.