January 2021 in “Clinical case studies and reports” A man had nail and hair changes months after severe Covid-19, showing long-term effects.
April 2025 in “Revista Digital de Postgrado” Severe malnutrition in young children causes various skin and nail issues, mainly pigmentation changes and extreme thinness.
January 2022 in “IAR Journal of Parasitology & Infectious Disease” Elderly people often have nail and hair disorders, with fungal infections affecting them negatively.
21 citations
,
January 2005 in “Skinmed” Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.
3 citations
,
January 2018 in “Skin Appendage Disorders” Nail issues are common in alopecia areata patients.
August 2024 in “Journal of the American Academy of Dermatology” Nail color change might be an early sign of skin pigmentation from minocycline.
18 citations
,
March 1974 in “Acta dermato-venereologica” Chronic kidney disease can cause skin and nail problems.
2 citations
,
January 2024 in “European Journal of Case Reports in Internal Medicine” Beau's lines on fingernails might indicate past severe COVID-19 and risk of reinfection.
6 citations
,
June 2024 in “Drug Testing and Analysis” Nails could be used to check long-term drug use, but more research is needed.
76 citations
,
March 2008 in “Journal of the American Academy of Dermatology” Videodermoscopy can help diagnose and monitor nail bed psoriasis.
4 citations
,
July 2019 in “Clinics in Dermatology” The document concludes that while white skin, nail, and mucosa diseases increase skin cancer risk, they are generally harmless, especially compared to darker pigmentation conditions.
6 citations
,
April 2024 in “Health Science Reports” Younger patients with severe alopecia areata often have nail problems.
January 2026 in “Deutsches Ärzteblatt international” 45 citations
,
January 2018 in “International Journal of Dermatology” Nail problems are common in people with alopecia areata, often leading to cosmetic and functional issues, but more research is needed for treatment guidelines.
21 citations
,
April 2004 in “Australasian Journal of Dermatology” A 3-year-old girl has a rare condition causing sparse hair and nail issues, with minimal improvement from treatment.
March 2023 in “Journal of the turkish academy of dermatology” High levels of ceruloplasmin might indicate more severe toenail fungus.
February 2025 in “Indian Dermatology Online Journal” Pincer nails are rare in lupus patients and may be managed conservatively.
Low vitamin C caused bleeding and corkscrew hair, resolved with vitamin C treatment.
February 2023 in “International Journal of Dermatology” 30 citations
,
May 1980 in “Journal of the American Academy of Dermatology” Alopecia areata can cause spotty white areas on nails.
February 2005 in “Journal of The American Academy of Dermatology” Not all nail problems are caused by fungus, new allergens are being identified, PCOS has various treatments, and aesthetic procedures like Botox are advancing.
September 2014 in “Emergency Medicine News” The man's skin condition improved with sun protection and topical steroids, but UV exposure still caused flare-ups.
January 2022 in “Przegla̧d dermatologiczny” A man with a mental disorder turned his skin blue-gray by drinking silver to treat warts.
18 citations
,
April 1989 in “Archives of Dermatology” Iron deficiency can cause hair color changes, which can be reversed with iron supplements.
1 citations
,
November 2019 in “International Journal of Women's Dermatology” Ketoconazole shampoo can cause rare pink hair discoloration.
2 citations
,
December 2013 in “The Journal of Dermatology”
March 2026 in “Scholars Journal of Medical Case Reports” Nail issues are common in kids with alopecia areata and should be checked for better diagnosis.
58 citations
,
November 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The Foxn1 gene is essential for normal nail and hair development.
44 citations
,
May 1980 in “Archives of Dermatology” "20-nail dystrophy" can have multiple causes.
2 citations
,
February 2021 in “PubMed” Koilonychia in alopecia areata can improve with oral corticosteroids.