1 citations
,
August 2023 in “Journal of cosmetic dermatology (Print)” Too much selenium can cause hair loss and nail problems.
84 citations
,
October 2005 in “Annals of Clinical Psychiatry” Hairpulling, skin picking, and nail biting cause significant harm and need more research for better treatments.
August 2021 in “Indian dermatology online journal” A young boy with a rare skin and nail condition improved significantly with simple topical treatments.
1 citations
,
April 2024 in “The Journal of Dermatology” Untreated epidermolysis bullosa acquisita can cause total hair and nail loss.
34 citations
,
December 2009 in “Journal of the American Academy of Dermatology” Improper use of ceramic flat irons can cause severe hair damage.
5 citations
,
January 2022 in “Journal of Cosmetic Dermatology” COVID-19 can cause hair loss and nail changes in some patients.
9 citations
,
January 1980 in “Dermatology” Hair casts may be caused by repetitive hair pulling or styling and are often misdiagnosed.
April 2026 in “PsyArXiv (OSF Preprints)” Nail sampling is feasible for adolescent health research, similar to hair sampling, but discomfort concerns need addressing.
April 2019 in “International journal of research in dermatology” A child with rough nails also had hair loss and allergies.
20 citations
,
January 2015 in “Journal of cosmetic dermatology” Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.
February 2023 in “International Journal of Dermatology” 5 citations
,
January 2012 in “Journal of nutrition & food sciences” The supplement improved hair, skin, and nails appearance and had long-term benefits.
13 citations
,
September 1989 in “International Journal of Dermatology” Carbamazepine may cause reversible nail detachment.
6 citations
,
June 2024 in “Drug Testing and Analysis” Nails could be used to check long-term drug use, but more research is needed.
July 2025 in “ALEXMED ePosters” Low levels of folic acid and ferritin may contribute to hair loss and scalp pain in women.
4 citations
,
August 2013 in “Pediatric dermatology” Hair casts can be treated with physical removal and special shampoos.
January 2014 in “Pathology” The document concludes that understanding nail anatomy is key for diagnosing nail diseases, early signs of nail melanoma may allow for less aggressive treatment, and specific genetic mutations are important in thyroid cancer prognosis and treatment.
18 citations
,
September 1994 in “Clinical and Experimental Dermatology” Localized trichorrhexis nodosa is a hair condition where hair becomes fragile and breaks easily due to damage.
2 citations
,
August 2022 in “Cutis” COVID-19 vaccination may cause temporary nail changes, but they're not serious.
January 2011 in “Yearbook of Dermatology and Dermatologic Surgery”
5 citations
,
October 2012 in “CMAJ. Canadian Medical Association journal” The girl had harmless hair casts, not lice.
44 citations
,
May 1980 in “Archives of Dermatology” "20-nail dystrophy" can have multiple causes.
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.
6 citations
,
August 2012 in “The Journal of Pediatrics” A 12-year-old girl was diagnosed with monilethrix, a genetic condition causing fragile, beaded hair that breaks easily, with no effective treatment available.
2 citations
,
July 2013 in “PubMed” The pubic hair loss was likely due to anorexia nervosa.
September 2025 in “International Journal of Cosmetic Science” Friction causes hair breakage during combing, and fragment count predicts hair strength.
1 citations
,
November 2011 in “Archives of Dermatology” A woman's hair loss was caused by her husband's testosterone gel and a diabetic man's nail disease led to bone infection, both treated successfully.
8 citations
,
April 2017 in “American Journal of Dermatopathology” Inflammation may cause nail issues in Cronkhite–Canada Syndrome.
17 citations
,
January 2015 in “International Journal of Trichology” Frontal fibrosing alopecia may affect nails and could be a type of lichen planus, treatable with certain medications.
September 2009 in “Medical and surgical dermatology/Medical & surgical dermatology”