November 2025 in “Healthcare” Zinc levels don't significantly affect hair loss, so testing for zinc isn't necessary.
June 2025 in “JEADV Clinical Practice” Scarring alopecia is linked to higher rates of vitamin D deficiency, metabolic issues, mental health problems, thyroid disease, and other health conditions.
January 2025 in “Global Journal of Medical Therapeutics” Minoxidil can cause allergic skin reactions, especially in those with underlying health issues.
December 2024 in “Journal of Clinical Research in Pediatric Endocrinology” 21-hydroxylase deficiency causes hormone imbalances leading to various symptoms, and diagnosis involves clinical and genetic tests.
October 2023 in “Journal of Family Medicine and Primary Care” More awareness and education on iron deficiency anemia are needed in Riyadh.
Older people tend to have higher biotin levels, which are weakly linked to certain blood components and negatively linked to triglycerides; biotin should be checked in patients with high triglycerides or medication-related skin issues, and only supplemented if deficient. Vitamin D and folate deficiencies are linked to specific skin conditions.
December 2022 in “Journal of The American Academy of Dermatology” The authors maintain there is a significant link between vitamin D deficiency and central centrifugal cicatricial alopecia in Black patients, and call for more research on the topic.
October 2022 in “Endocrine journal” Testosterone and dihydrotestosterone treatments can help with penile growth in males with 5α-reductase type 2 deficiency, with dihydrotestosterone being more effective in infancy.
September 2021 in “Physiology News” Conditions affecting sex development show that sexual diversity is a natural part of human variation.
May 2021 in “Journal of the Endocrine Society” A woman's hair loss and other symptoms were due to a rare hormone deficiency treatable with steroids.
Women with hair loss may benefit from higher iron levels.
November 2020 in “IntechOpen eBooks” Not getting enough minerals can lead to health problems and shorter lifespans.
November 2020 in “World Journal of Integrated traditional and western Medicine(WJIM)” Shengyang Sanhuo Decoction effectively treats hair loss by supporting the spleen and stomach.
September 2020 in “International Journal of Research in Medical Sciences” People with alopecia areata had lower vitamin D levels, but these levels did not relate to how severe their condition was.
April 2020 in “BMC endocrine disorders” A woman with childhood growth hormone deficiency had multiple hormone deficiencies and developed serious lung and kidney problems later in life.
Ferric carboxymaltose effectively improved iron deficiency anemia symptoms and increased hemoglobin and ferritin levels.
January 2017 in “프로그램북(구 초록집)” Iron deficiency anemia can cause hair breakage.
March 1993 in “Neuroscience letters” Biotin is important for metabolism, with specific daily intake recommendations, and deficiency can cause health problems.
4 citations
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September 1977 in “Lipids” Gerbils on a fat-deficient diet had altered fatty acid levels, hair loss, reduced sperm, and lower body weight.
218 citations
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December 2011 in “Advances in Urology” The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.
135 citations
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October 2010 in “Stem Cells” Hair follicle stem cells can help treat eye surface issues by becoming corneal cells.
113 citations
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June 2010 in “Biological Chemistry” Cathepsin L deficiency causes large, abnormal cell structures and health issues in mice.
48 citations
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April 2018 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” People with alopecia areata often have lower vitamin D levels and are more likely to be deficient in it.
21 citations
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September 2018 in “International journal of women’s dermatology” People with Lichen planopilaris are more likely to have certain autoimmune and endocrine disorders but less likely to have conditions like allergies and diabetes.
4 citations
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March 2020 in “JAAD Case Reports” Vitamin B12 deficiency can cause darkening of all nails.
2 citations
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November 2024 in “JCEM Case Reports” Inhaled substances in e-cigarettes can cause hormone imbalances similar to congenital adrenal hyperplasia.
2 citations
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October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
1 citations
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May 2013 in “Hair transplant forum international” Non-classical 21 hydroxylase deficiency is an underdiagnosed cause of female hair loss and polycystic ovarian syndrome.
1 citations
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January 2013 in “Nasza Dermatologia Online” Vitamin B12 deficiency can cause reversible hair color loss in children.
1 citations
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November 1995 in “Postgraduate medical journal” A Saudi individual initially identified as a girl had a genetic disorder affecting gender development.