Total IgE, the allergy antibody Total Immunoglobulin E (IgE)
The antibody your body makes in allergy and when it fights off worms.
Also printed asTotal IgE · IgE · Immunoglobulin E
What it measures
The antibody class your immune system makes against allergens and parasites.
Supports an allergic explanation for symptoms or for a raised eosinophil count, but does not name the allergen.
Why it matters for how long you stay well
It tells you an allergic tendency exists but never which trigger, so its value is in prompting the right next test rather than in the number itself.
How it shows up in daily life
A high level fits with hay fever, asthma, eczema and food allergy, and often with intestinal worms.
High and low readings
When it reads high
Allergy, asthma, eczema or a parasite; read it with the eosinophil count.
When it reads low
Low is fine.
What moves it
Daily life
- hay fever, asthma and eczema
- intestinal worms
- season and pollen
- smoking
Medicines known to shift it
- steroids (lower it)
Listed so a result can be read in context. It is not advice to start, stop or change any medicine; that decision belongs with your physician.
Read it with
Markers that move this one, or that this one moves. One number read alone can mislead.
- Eosinophil countObserved association
As this rises, Eosinophil count moves with it
The allergy antibody and the allergy cell rise together in allergy, asthma and worm infection. Seeing both raised makes an allergic cause much more likely than either alone.
Common questions
What does Total Immunoglobulin E measure?
The antibody class your immune system makes against allergens and parasites. Supports an allergic explanation for symptoms or for a raised eosinophil count, but does not name the allergen.
What does a high Total IgE result usually mean?
Allergy, asthma, eczema or a parasite; read it with the eosinophil count.
What does a low Total IgE result usually mean?
Low is fine.
What is the usual reference range for Total IgE?
A broad adult reference band is below 100 IU/mL. Labs differ, so read your result against the band printed on your own report.
Educational only, not a diagnosis. A single number means little without your history and the rest of your panel, so discuss your own results with your physician.
Typical adult reference band
- Adults
- below 100 IU/mL
Labs differ. The band printed on your own report is the one that applies to your result.
Reported in IU/mL, kU/L
Ageing relevance
1/5
A general health marker with limited direct ageing data.
Worth knowing
It is the rarest antibody in blood, present in far smaller amounts than any of the others.
Have a report with this marker on it? Read it in context.
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Your biological age is a number you can measure.
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