3 citations
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August 2022 in “Cutis” Certain nail conditions can suggest thyroid problems, with different symptoms for underactive (slow, thin nails) and overactive (spoon-shaped, brittle nails) thyroid.
January 2026 in “Dermatology Practical & Conceptual” Nail changes are common in alopecia areata and can indicate its severity.
45 citations
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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.
1 citations
,
January 2018 in “Journal of clinical & experimental dermatology research” Some nail changes in chilblains can look like lichen planus and may be severe and long-lasting.
8 citations
,
May 2021 in “Journal of the European Academy of Dermatology and Venereology” A COVID-19 patient had unusual nail discoloration and nail separation possibly due to the virus's effects on small blood vessels.
3 citations
,
January 2018 in “Skin Appendage Disorders” Nail issues are common in alopecia areata patients.
6 citations
,
April 2024 in “Health Science Reports” Younger patients with severe alopecia areata often have nail problems.
June 2025 in “British Journal of Dermatology” Nail abnormalities in children can indicate deeper health issues.
2 citations
,
August 2022 in “Cutis” COVID-19 vaccination may cause temporary nail changes, but they're not serious.
13 citations
,
April 2009 in “Journal der Deutschen Dermatologischen Gesellschaft” Nail disorders not caused by infection are common and can look similar, with psoriasis being the most frequent and having specific nail symptoms.
January 2020 in “Medpulse International Journal of Medicine” Nail and hair changes are common in severe chronic kidney disease and should be treated to improve patients' quality of life.
6 citations
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October 2006 in “International Journal of Dermatology” Hair splitting and nail detachment are linked conditions.
September 2024 in “Cureus” A 10-year-old boy's nail condition is mainly cosmetic and improves over time with treatment.
11 citations
,
November 2005 in “The Journal of Dermatology” A man's crushed thumb caused unusual horizontal nail ridges on all fingers of one hand.
The study concludes that Twenty-nail dystrophy is more common in boys among children and in women among adults, with varying response to treatment.
September 2021 in “CRC Press eBooks” Pregnancy can cause normal skin changes, including darkening of certain areas, nail changes, vascular changes, and breast changes like stretch marks.
4 citations
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June 2014 in “The Journal of Dermatology” Elkonyxis, a rare nail condition, improved when patients stopped their nail-picking habits.
7 citations
,
September 2011 in “International Journal of Dermatology” The Korean study found that twenty-nail dystrophy mainly affects adults, more often women, and has five distinct types with different clinical progressions.
5 citations
,
January 2022 in “Journal of Cosmetic Dermatology” COVID-19 can cause hair loss and nail changes in some patients.
4 citations
,
February 2018 in “Annales de Dermatologie et de Vénéréologie” Onychomatricome is a benign nail tumor with specific dermoscopic features that help distinguish it from cancer.
4 citations
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March 2020 in “JAAD Case Reports” Vitamin B12 deficiency can cause darkening of all nails.
4 citations
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November 2009 in “Medical Clinics of North America” Stress, nutritional issues, and chronic diseases can cause hair loss, and nail changes may signal internal diseases; treatment focuses on the underlying cause.
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.
March 2012 in “Journal of The American Academy of Dermatology” Hand-foot-mouth disease may cause nail loss in children.
6 citations
,
January 2017 in “International Journal of Dermoscopy” Dermoscopy is useful for early diagnosis and monitoring of nail diseases.
February 1988 in “Journal of the American Academy of Dermatology”
1 citations
,
January 2013 in “Springer eBooks” The document concludes that skin and nail changes can indicate various underlying health conditions.
September 2025 in “Cermin Dunia Kedokteran” Candida nail infections need lab tests for accurate diagnosis and treatment.
2 citations
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January 2025 in “Dermatology Practical & Conceptual” Nailfold dermoscopy is a simple, cheap way to check blood vessel changes in COVID-19 patients.
October 2012 in “CRC Press eBooks” HIV can cause hair loss and changes in nails, which may indicate disease progression.