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Eosinophils

Eosinophils are white blood cells involved in allergic reactions and fighting parasites. Most people have only a few.

Reference range
0–6%
Direction
Lower is generally better
01

Your reading

This app uses 0–6% of white cells. They commonly rise with hay fever, asthma, eczema and other allergies, and with some medications. Parasitic infections raise them too, which matters more after travel. A count of zero is normal.

02

What may help

  • —Managing allergies and asthma, which usually brings a mild rise back down
  • —Mentioning recent travel or new medications to your doctor if the count is high
03

When to talk to a doctor

If they're well above 6% (or above about 1.5 thousand per microlitre), or raised without a known allergy.

04

Common questions

What is Eosinophils?

Eosinophils are white blood cells involved in allergic reactions and fighting parasites. Most people have only a few.

What is a normal Eosinophils level?

Daygo uses 0–6% as the reference range. This app uses 0–6% of white cells. They commonly rise with hay fever, asthma, eczema and other allergies, and with some medications. Parasitic infections raise them too, which matters more after travel. A count of zero is normal.

How can I improve my Eosinophils?

Managing allergies and asthma, which usually brings a mild rise back down. Mentioning recent travel or new medications to your doctor if the count is high.

When should I see a doctor about Eosinophils?

If they're well above 6% (or above about 1.5 thousand per microlitre), or raised without a known allergy.

Source: MedlinePlus (NIH): Complete Blood Count. Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.