Eosinophils are white blood cells that help your body respond to allergies and certain infections.
Securely stored in EU
Cancel anytime
Test 100+ biomarkers
Less than 5 minutes waiting time. One
simple test at one of our 20+ locations.
Get your lab reports within one week.
Accessible on our app and per PDF.
All your health records stored
in a single, convenient place.
Clinicians check eosinophils as part of a complete blood count when symptoms suggest allergies, asthma, rashes, or certain infections. Results help guide next steps, like allergy testing, stool tests, or medication review. It’s also used to monitor trends during treatment. You can test this marker with Aniva across Germany and Finland.
Clinicians check eosinophils as part of a complete blood count when symptoms suggest allergies, asthma, rashes, or certain infections. Results help guide next steps, like allergy testing, stool tests, or medication review. It’s also used to monitor trends during treatment. You can test this marker with Aniva across Germany and Finland.
High: May reflect allergies, asthma, eczema, certain infections (especially parasites), drug reactions, or other inflammatory conditions. Share symptoms, travel, pet exposures, and medicines with your clinician; they may suggest stool tests or allergy testing.
Low: Common after steroid use, during stress, or with high cortisol levels; often not concerning on its own. If unexpected, consider retesting when well and off short-term steroids if appropriate.
Common factors that can affect results include corticosteroids (inhaled or oral), epinephrine, recent infections, acute stress, vigorous exercise, smoking, and the time of day. Seasonal allergies, travel-related exposures, and pregnancy can also shift eosinophil levels. For consistent tracking, try to test at a similar time of day.
Special situations: If results are unexpected, confirm with a repeat test when well, and review medications (especially steroids) and recent travel or exposures.
What do eosinophil results mean in plain terms? Higher levels often point to allergies, asthma, or certain infections. Lower levels are commonly seen with stress or steroid use.
Do I need to fast for this test? No. Fasting is not needed. For trends, try to test at a similar time of day.
What can affect my eosinophil count? Steroids, recent illness, stress, exercise, time of day, smoking, pregnancy, and travel exposures can change results.
How often should I check eosinophils? They’re usually checked with a routine CBC or as advised for symptoms or treatment monitoring.
How long do results take? Most labs report results within 1–2 business days.
What should I discuss with my clinician? Share allergy and asthma history, medicines (especially steroids), recent travel, pet exposures, and any new rashes or breathing issues.
One annual blood test (100+ biomarkers)
Clinician-reviewed insights
Personalized action plan
Access to our AI Concierge
Access to curated products
63%
44%
70%
