12 citations
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January 2000 in “Journal of cutaneous medicine and surgery” Microorganism overgrowth and hyperkeratosis may trigger immune reactions causing lichen planopilaris.
10 citations
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January 2023 in “SAGE Open Medical Case Reports” COVID-19 infection and vaccination may trigger hair loss and rapid hair whitening.
9 citations
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August 2017 in “Photochemistry and Photobiology” Red light at 627 nm can safely trigger IL-4 release in skin cells, potentially helping treat inflammatory skin conditions.
4 citations
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December 2020 in “Journal of Dermatology” Impaired autophagy may cause hair loss by triggering early catagen.
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September 2012 in “Transplant international” Graft rejection in a hand transplant may trigger hair loss due to autoimmune responses.
3 citations
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February 2002 in “The American journal of psychiatry” Stopping birth control pills may have triggered a manic episode in a woman with HAIR-AN syndrome.
September 2025 in “BMJ Case Reports” Platelet-rich plasma therapy may rarely trigger herpes zoster ophthalmicus.
Tofacitinib effectively regrows hair in alopecia universalis triggered by a virus.
August 2024 in “Journal of Vaccines Immunology and Immunopathology” A COVID-19 vaccine may trigger severe hair loss in rare cases.
June 2023 in “British journal of dermatology/British journal of dermatology, Supplement” Some multiple sclerosis treatments may trigger hair loss conditions like alopecia areata.
June 2023 in “British Journal of Dermatology” Facial lichen planopilaris may be triggered by shaving and mustard oil, and early detection is crucial for better treatment outcomes.
June 2022 in “Annals of Indian Academy of Neurology” A woman's shingles infection triggered her first episode of a rare neurological disorder and blood vessel inflammation.
April 2018 in “Journal of Investigative Dermatology” Blocking a specific immune cell signal can trigger hair growth.
June 2013 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” FGF9 from certain cells can trigger new hair growth during wound healing, but humans have fewer of these cells, which may limit hair regrowth.
January 2005 in “Doctoral thesis, University of London.” Activating β-catenin signaling can trigger hair growth and new hair follicle formation.
September 2004 in “Kitasato medical journal” Epidermal growth factor causes hair loss by triggering cell death and changing the hair cycle.
January 1996 in “Springer eBooks” Hair loss increases with age and is triggered by hormones like androgens.
191 citations
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May 2018 in “British journal of dermatology/British journal of dermatology, Supplement” Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.
44 citations
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May 1997 in “Journal of Biological Chemistry” The human keratin 6a gene's specific sequences trigger expression in skin layers after injury.
41 citations
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August 1988 in “Journal of The American Academy of Dermatology” A woman with subacute cutaneous lupus erythematosus had widespread skin symptoms triggered by medication and sunlight, which improved with specific treatments.
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May 2022 in “Frontiers in Medicine” The study suggests pandemic stress might worsen or trigger hair loss problems.
January 2026 in “BioScience Trends” UV radiation causes skin aging by damaging cells and triggering harmful processes.
Scalp psoriasis inflammation is mainly caused by bacteria-related triggers.
April 2023 in “Journal of Investigative Dermatology” Disrupting a specific protein's function in hair follicle stem cells triggers their activation and a self-healing process.
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
74 citations
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May 2016 in “Current opinion in pediatrics, with evaluated MEDLINE/Current opinion in pediatrics” Both vitiligo and alopecia areata involve an immune response triggered by stress and specific genes, with treatments targeting this pathway showing potential.
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December 2016 in “The journal of pharmacology and experimental therapeutics/The Journal of pharmacology and experimental therapeutics” Certain drugs increase calcium levels in cancer cells by triggering internal calcium release.
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May 2023 in “Journal of Dermatological Science” Reduced SIRT1 in hair cells may cause alopecia areata by triggering immune responses.
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August 1991 in “PubMed” Inflammation, possibly triggered by a specific bacteria and activated by UV radiation, may contribute to male pattern baldness.
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August 2022 in “Curēus” The SARS-CoV-2 vaccine may be linked to triggering autoimmune conditions like Alopecia Areata.