Is TSH Schilddrüse useful for allergy?

Is TSH (thyroid) testing useful for allergies? Based on current evidence, the answer is no. TSH is a marker of thyroid function, not of allergic sensitization or histamine release. Allergies are diagnosed via specific IgE, skin prick tests, or clinical history. There is no established role for routine TSH measurement in allergy workup. While thyroid autoimmunity (e.g., Hashimoto's) can occasionally mimic or coexist with allergy symptoms, this is not a direct diagnostic link. Consumer tests that bundle TSH into an 'allergy panel' are misleading and lack scientific backing. If you suspect allergies, consult an allergist for proper testing. The evidence level is 'unclear' because the connection is indirect and weak. Safety note: an abnormal TSH may indicate thyroid dysfunction requiring separate evaluation, but it should not be used as a proxy for allergy testing.