Ferritin, CRP Thyroid Function Tests (T4 and TSH) B12 Folate Vitamin D Routine tests like Full Blood Count, Renal Function U&Es, Liver Function Tests, Magnesium, iron studies are usually included but less essential.
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What blood tests are done for hair loss?
Too little iron in the bloodstream may contribute to hair loss. Doctors use blood tests to check the level of ferritin, a protein that indicates how much iron is stored in the body