Interpret Your Eosinophils Results
Enter your Eosinophils value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.
Medical Disclaimer
This AI-generated interpretation is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Results may vary based on individual health factors not captured here.
Always consult a qualified healthcare professional before making any health decisions. Read full disclaimer →
Eosinophils Normal Ranges
Eosinophils are white blood cells that primarily fight parasitic infections and modulate allergic responses.
| Age Group | Reference Range | Unit | Notes |
|---|---|---|---|
| Adults (18–64) | 0.05 – 0.5 | ×10³/µL | — |
Also reported in: %.
Why Doctors Order the Eosinophils Test
Eosinophilia is a critical finding that narrows the differential to allergic, drug-related, parasitic, or malignant causes. Hypereosinophilic syndrome (AEC >1,500/µL persistently) can cause end-organ damage to the heart, lungs, skin, and nervous system.
How to Enter Your Eosinophils Result
Eosinophils can be reported in ×10³/µL or %. Choose the unit printed next to your result on the lab report so it is compared with the matching reference range.
What a Low or High Eosinophils Can Be Associated With
Below the reference range
- Corticosteroid use (epinephrine and steroids redistribute eosinophils)
- Acute bacterial infections (eosinophils temporarily absent)
- Cushing's syndrome
Above the reference range
- Allergic diseases: asthma, hay fever, atopic dermatitis, food allergy
- Parasitic infections: roundworm, hookworm, Strongyloides, Toxocara, Trichinella
- Drug hypersensitivity reactions
- Eosinophilic esophagitis or gastroenteritis
- Hypereosinophilic syndrome
These are common associations, not a diagnosis. A single result is read alongside your symptoms, history and other tests — discuss it with your doctor.
What Can Change Your Eosinophils Result
Before you read too much into a result, consider whether any of these applied:
- Time of day (lowest in the morning, highest at night — circadian rhythm)
- Corticosteroids (significantly lower eosinophil count)
- Exercise (transient decrease)
Preparing for the test: No special preparation. Part of CBC differential.
Symptoms That Often Prompt Eosinophils Testing
- Itching and skin rashes
- Wheezing and asthma symptoms
- Abdominal pain (in GI eosinophilia)
- Coughing
- Nasal symptoms
Want the full clinical guide to Eosinophils?
Reference ranges, causes, symptoms, preparation, and FAQs.