COVID-19 can cause hair loss and nail issues, with treatments available for these conditions.
July 2009 in “Medical & surgical dermatology” Low-dose acitretin helps nail psoriasis, stem cells may treat scarring alopecia, Chinese men have lower baldness rates, lateral foldplasty is good for ingrown toenails, hair diameter helps diagnose female baldness, childhood trauma linked to alopecia areata, certain hair-weaving leads to scalp conditions in African American women, and new methods for hair research and understanding hair and sweat gland development were introduced.
Biotin and silica from plants improve hair, skin, and nail health.
3 citations
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June 2012 in “Korean Journal of Human Ecology” The supplement reduced hair loss and increased hair thickness safely.
9 citations
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November 2013 in “Dermatologic Surgery” Hair transplant complications were likely due to deep graft placement and rough handling.
28 citations
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September 1986 in “Pediatric dermatology” Zinc therapy improved hair health in a girl with acrodermatitis enteropathica.
January 2025 in “International Journal of Dermatology” Tofacitinib improved hair and nail conditions in a teen with alopecia areata.
October 2019 in “Postgraduate Medical Journal” Pellagrous dermatitis, caused by niacin deficiency, can be cured with vitamin supplements.
July 2025 in “ALEXMED ePosters” Onychomatricoma is a unique nail tumor, not related to other hair-related tumors.
December 2025 in “IP Indian Journal of Clinical and Experimental Dermatology” Trichorrhexis nodosa causes hair to break easily, often affecting young to middle-aged black women.
48 citations
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February 1998 in “British Journal of Dermatology” Thallium poisoning can cause severe neurological symptoms and hair loss.
October 2022 in “Medičnì perspektivi” Darier-White disease causes skin and nail issues, starts around age 20, worsens until 40-50, and has poor treatment options.
January 2021 in “Skin Appendage Disorders” December 2019 in “C&EN Global Enterprise” Thicker hair isn't always stronger.
8 citations
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April 2017 in “Journal of The Royal Society Interface” Giant axonal neuropathy changes the structure of keratin in human hair.
Iron supplements may reverse premature graying in iron-deficient individuals; ingrown nails are common in diabetics with certain risk factors; topical finasteride may reduce scalp DHT as effectively as oral finasteride; monilethrix treatment is challenging but some medications can help.
15 citations
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October 2016 in “Journal of dermatological treatment” Proper hair care can prevent and stop hair breakage in people with acquired trichorrhexis nodosa.
40 citations
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May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
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.
January 2026 in “Clinical Case Reports” A 6-year-old girl had both monilethrix and trichorrhexis nodosa, causing brittle hair, with minimal improvement from treatment.
September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
August 2022 in “Acta dermato-venereologica” Propylthiouracil can cause hair loss, reduced sweating, and nail issues, but stopping the drug can reverse hair and nail problems.
17 citations
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July 1984 in “British journal of dermatology/British journal of dermatology, Supplement” The four patients have a unique type of ichthyosis affecting hair follicles.
24 citations
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July 2005 in “Journal of the American Academy of Dermatology” A woman's eyelashes grew thicker and longer after taking topiramate, but returned to normal when she stopped the medication.
April 2023 in “Asia-pacific Journal of Convergent Research Interchange” Hair manicure improves the strength and condition of bleached hair.
December 2021 in “Trichology and cosmetology:” Taking Kera-Diet® improves hair and nail health without side effects.
6 citations
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February 2014 in “Human & experimental toxicology” Testosterone injections can cause skin darkening and thickening.
December 2022 in “Himi, himijn tehnologijn hùrèèlèngijn èrdèm šinžilgèènij bùtèèl” Hair products with copper and zinc enriched yeast made hair thicker and denser.