115 citations
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May 2016 in “Clinical Medicine & Research” TSH is usually the only test needed to check thyroid function in primary care.
May 2022 in “Endocrine practice” High-dose biotin can cause false thyroid test results; stop taking biotin two days before testing to avoid errors.
5 citations
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May 2019 in “Cureus” Taking biotin supplements can cause incorrect thyroid test results, leading to wrong diagnoses.
3 citations
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April 2022 in “Our Dermatology Online” Thyroid disorders are linked to skin conditions like vitiligo and hair loss, so thyroid tests are recommended.
67 citations
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November 2002 in “Journal of The American Academy of Dermatology” The document concludes that careful evaluation is key to diagnose and treat women with hair loss, with tests for thyroid, iron, and hormones as needed.