Thyroid problems can cause hair loss and change hair texture.
Hair aging leads to color loss and reduced density, and dermatologists are key in treating it to improve quality of life.
Both changes in genes and environmental factors like diet and toxins can significantly affect the growth of skin appendages like hair, but how these factors interact is still unclear.
January 2011 in “Medicina interna de México” The document concludes that treating the underlying causes of telogen effluvium usually results in hair regrowth.
February 2009 in “Springer eBooks” Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.
December 2004 in “Medicine” A thorough history and examination are crucial for diagnosing skin diseases, which affect up to a third of people. This includes details about skin lesions, medication, general health, lifestyle, family, and contacts, as well as examining the rash, hair, nails, and mucous membranes. Changes in hair and nails can also indicate other medical and skin disorders.
August 2020 in “Asian Pacific Journal of Cancer Prevention” Long-term use of Finasteride improves hair growth in Saudi women but may cause menstrual irregularities and mood changes.
49 citations
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February 2020 in “Scientific reports” The nanohybrid system significantly improved wound healing and showed strong antibacterial activity.
88 citations
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July 2014 in “Journal of the American Academy of Dermatology” Targeted cancer therapies often cause skin reactions, so dermatologists must manage these effects.
24 citations
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July 1980 in “Journal of Toxicology and Environmental Health” High doses of norethindrone acetate in rats caused various organ changes but didn't significantly increase tumor rates.
January 2008 in “Projeto: revista mensal de arquitetura” Targeted cancer drugs can cause skin reactions, so dermatologists must manage these effects.
253 citations
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April 2009 in “Journal of Biological Chemistry” p2y5, now called LPA6, is a receptor important for human hair growth.
35 citations
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May 2011 in “Experimental Dermatology” Aging causes changes in hair follicles, leading to weaker hair growth.
28 citations
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August 2018 in “BMC genomics” DNA methylation changes are linked to hair growth cycles in goats.
28 citations
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May 2017 in “Molecular ecology” Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.
16 citations
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April 2009 in “Dermatologic Surgery” The place where hair is transplanted can change its growth rate and length but not its thickness.
11 citations
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January 2018 in “International journal of trichology” Valproate can cause hair loss and changes in hair appearance, but may help regrow hair when applied topically.
10 citations
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January 2004 in “Dermatologic Surgery” Storing hair follicles in special buffers with added protective substances can increase hair growth and reduce cell death.
8 citations
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August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
6 citations
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March 2020 in “Anais Brasileiros de Dermatologia” Thyroid disease can cause skin and hair changes, treatable with levothyroxine.
6 citations
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May 1987 in “Acta dermato-venereologica” Syphilis patients showed abnormal hair root changes, with no difference between primary and secondary stages.
5 citations
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June 2017 in “in Vivo” Vitamin C deficiency changes gene expression, affecting skin and hair health.
4 citations
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February 2019 in “Journal of Cutaneous Pathology” The marker 5-hmC changes in hair follicle stem cells when they start to grow.
3 citations
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August 2025 in “Cell” Fibroblast bioelectric signaling can promote hair growth and may help treat hair loss.
3 citations
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July 2023 in “Frontiers in Aging” Hair follicle stem cells change states with age, affecting hair growth and aging.
3 citations
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December 2022 in “Nutrients” Limonin from young citrus fruits may help with hair growth by affecting cell growth and hair cycle pathways.
1 citations
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March 2019 in “International Journal of Molecular Medicine” Mouse hair follicle cells can become heart-like cells without genetic changes.
1 citations
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May 2018 in “Clinical chemistry” The girl's unexpected pubic hair growth led to a diagnosis different from complete androgen insensitivity syndrome.
1 citations
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April 2018 in “Journal of dairy science” Dairy cows' skin and hair follicles change size and growth phase around the time they give birth.
September 2017 in “Journal of Investigative Dermatology” The Siah1 and Siah2 genes are active in mouse skin development and hair growth, especially right after birth.