Pseudofolliculitis causes painful bumps and dark spots from shaving, especially in people with curly hair, and can be treated by changing shaving habits and using specific topical treatments.
4 citations
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May 2020 in “Journal of The American Academy of Dermatology” Cicatricial pattern hair loss is likely advanced common baldness, not a type of lichen planopilaris.
April 1996 in “Journal of Dermatological Science” 18 citations
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January 1994 in “Skin Pharmacology and Physiology” Human dermal fibroblasts and hair papilla cells help outer root sheath cells grow and develop properly.
4 citations
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January 2011 in “Annals of Dermatology” Researchers found a new mutation in the HR gene linked to a rare hair loss condition.
December 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The conclusion is that the dermal papilla is crucial for hair follicle regrowth, and hair follicles undergo significant structural changes in addition to cell division during regeneration.
Genetic factors might cause fibrosing alopecia linked to hair shaft abnormalities.
5 citations
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September 2010 in “Cancer Prevention Research” The research suggests new treatments for skin cancer could target specific cell growth pathways.
September 2021 in “CRC Press eBooks” Lichen planopilaris causes permanent hair loss and scarring due to damage to hair follicles and can be mistaken for other hair loss conditions.
181 citations
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January 2009 in “Nature Genetics” Certain mutations in a hair growth-related gene cause a type of genetic hair loss.
April 2020 in “International journal of reproduction, contraception, obstetrics and gynecology” A postmenopausal woman with hair loss and hirsutism improved after surgery to remove an ovarian tumor.
7 citations
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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.
April 2017 in “Journal of Investigative Dermatology” Stem cells can create hair follicles, potentially treating permanent hair loss, and healthy skin and hair depend on mitochondrial function and special fats.
15 citations
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July 2017 in “PubMed” Injecting a mix of human skin and hair cells into mice can grow new hair.
7 citations
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December 2019 in “Experimental and Therapeutic Medicine” WNT10B affects hair growth by altering gene activity in hair cells.
8 citations
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January 2014 in “Indian Dermatology Online Journal” Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.
August 2021 in “Clinical and Experimental Dermatology” Children under 10 can experience hair thinning without hormone issues, and it may improve with treatment.
1 citations
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July 2025 in “Scientific Reports” CD133+ cells are crucial for hair growth.
December 2025 in “Animals” TGFBR1 slows down cell growth in fine-wool sheep hair follicles.
January 2026 in “Non-coding RNA Research” Exosomal miRNA-218-5p promotes hair growth and development.
August 2023 in “British journal of dermatology/British journal of dermatology, Supplement” Rubbing or pressing on the face can cause small bumps, and changing posture along with certain creams can improve them.
14 citations
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August 2004 in “Veterinary Dermatology” The horse had a rare type of hair loss caused by immune cells attacking hair follicles.
8 citations
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August 1970 in “JAMA” Excessive vitamin A can cause symptoms that mimic serious brain conditions.
9 citations
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January 2005 in “Pediatric Dermatology” Fox Fordyce disease can occur in prepubertal girls and may be underdiagnosed.
February 2026 in “International Journal of Homoeopathic Sciences” Plica Polonica is a rare hair disorder causing severe matting, managed by detangling or cutting, and prevented with regular hair care.
19 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Dermal-epidermal interactions are crucial for hair growth and maintenance.
1 citations
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October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
January 2006 in “Chinese Journal of Dermatology” Mesenchymal cells are essential for hair follicle stem cell growth.
2 citations
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March 1994 in “Oncology Reports” Keratoacanthomas and squamous cell carcinomas have similar keratin patterns, making them hard to tell apart.
7 citations
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May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.