Immune & Inflammation
Immunoglobulin E Antibodies
Immune & Inflammation
IgE is the antibody behind allergic reactions. When it's high, your body is overreacting to something — pollen, food, dust, you name it.
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If you've ever sneezed your way through spring or broken out in hives after eating something, you've met IgE. This antibody is your immune system's overenthusiastic bouncer. When it encounters an allergen, it triggers the release of histamine and other chemicals that cause all those wonderful allergy symptoms. Elevated IgE is a strong sign of atopy, allergic conditions and parasitic infections. Newer research is even exploring it as a cancer biomarker.
This test is especially helpful if you're battling allergies, eczema, asthma or frequent allergic reactions to food or airborne triggers. It's also worth considering if you're dealing with recurring sinus infections, chronic diarrhoea, unexplained skin rashes or mystery fevers.
What a high value can mean
Elevated IgE is a strong marker for allergies, atopic conditions and parasitic infections. Very high levels can be linked to serious allergic reactions (anaphylaxis). Common culprits behind high IgE include hay fever, eczema, asthma, food allergies and chronic sinus infections.
What a low value can mean
Low or undetectable IgE might mean the immune system isn't firing on all cylinders. Possible causes include certain medications, chronic diseases, autoimmune conditions, gut disorders and chronic infections. Interestingly, ultra-low IgE levels are being studied as a potential oncology biomarker.
No prep needed. Bring valid ID to your appointment.
Order your test
Choose your test and pay online. Your lab referral is created straight away.
Give your sample
Visit any of our partner sampling locations. No appointment needed at most of them.
The lab analyses it
Your sample is analysed at an accredited Swedish laboratory.
Get your results
Your values appear in your account with reference ranges and an explanation of each marker.
Not necessarily. While elevated IgE and allergies go hand in hand, it can also be raised by parasitic infections, certain immune disorders and some cancers. Your doctor will look at the full picture — your symptoms, history and the number together.
They absolutely can. IgE fluctuates with allergen exposure, treatment, age and overall immune health. That's why tracking it over time gives you a much better picture than a single snapshot.