Immune Globulin E (IgE) and Allergies

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Immune Globulin E (IgE) and Allergies

Topic Overview

Immunoglobulins E (IgE) are allergy antibodies produced by your body's immune system. IgE is one of several immune globulin classes (such as IgA, IgG, and IgM). Each immune globulin class contains many different and unique antibodies.

  • IgE levels are generally elevated in people with allergic diseases (and asthma), but many of these people may have normal IgE levels.
  • Tests assessing IgE levels in association with skin tests, medical history, and a physical examination may be useful in diagnosing allergies in some people.

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Credits

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Harold S. Nelson, MD - Allergy and Immunology
Specialist Medical Reviewer Brian D. O'Brien, MD - Internal Medicine
Last Revised May 27, 2010

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