In brief
Key points
- ✓Not always required
- ✓Thyroid history matters
- ✓Symptoms guide testing
- ✓Results need interpretation
Possible indications
Symptoms of thyroid dysfunction, a strong autoimmune history, anaemia symptoms or a restrictive diet may support targeted investigation.
Avoid broad unsupervised panels
A result outside a reference range does not automatically explain pigment loss. Testing and supplementation should answer a defined clinical question.
Editorial basis: current AWMF S2k guideline on the diagnosis and treatment of vitiligo, register 013-093, version 2.0 dated 27 July 2026. Reviewed on 2 September 2026.
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