Is IgE Allergietest useful for Allergie?

An IgE allergy test (specific IgE) is a well-established tool in allergy diagnostics. It measures antibody levels against specific allergens and can indicate sensitization. However, a positive IgE result does not equal clinical allergy – many people have IgE against harmless substances without symptoms. Allergy diagnosis always requires correlation with medical history and possibly challenge tests. With home tests (e.g., from MyBody-X), the lack of physician interpretation can lead to misinterpretation. The evidence for the clinical utility of IgE testing is strong (human-strong), but for consumer use without professional guidance, its value is limited. In summary: IgE tests are useful but not diagnostic on their own.