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Neutrophils blood test

In short

A typical adult neutrophils result is 1.56 to 6.45 x10^3/µL. A high count most often means the body is responding to an infection, stress or inflammation. A mild rise usually settles once the cause passes. Always read your result against the range printed on your own report.

The most common white blood cells, the first to fight bacteria.

Neutrophils are the most common white blood cells and the first to reach an infection. Reports give them as a count and as a percent of all white cells. The count matters more, because the percent shifts when other cell types change.

Is my Neutrophils high or low?

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Typical range

ForRangeUnit
Adults1.56–6.45x10^3/µL
Adults · percent of white cells50–70%

Typical ranges for adults. Labs differ a little, so the range printed next to your result is the one to go by.

If your Neutrophils is high

A high count most often means the body is responding to an infection, stress or inflammation. A mild rise usually settles once the cause passes.

Common reasons

  • A bacterial infection, such as pneumonia or a bladder infection
  • Physical or emotional stress, hard exercise or recent surgery
  • Steroid medicines, which can raise the count
  • Smoking, which keeps the count a little higher
  • Pregnancy, when a higher count is expected
  • Ongoing inflammation, such as from arthritis or a bowel condition
  • Less often: a bone marrow condition that makes too many white cells

If your Neutrophils is low

A mildly low count is common and often harmless, especially after a viral illness. Very low counts raise the risk of infection, so doctors watch how low it goes.

Common reasons

  • A recent viral illness, such as a cold or flu
  • A naturally lower count, common in people of African or Middle Eastern ancestry
  • Some antibiotics, some seizure medicines or medicines for an overactive thyroid
  • Low vitamin B12, folate or copper
  • An autoimmune condition, such as lupus
  • Chemotherapy or radiation treatment
  • Less often: a bone marrow condition or a severe infection

What can throw it off

A recent infection, hard exercise, stress, smoking and steroid medicines can all push the count up for a while.

When it can’t wait

A Neutrophils of 0.5 x10^3/µL or less usually needs a doctor's attention the same day. Call your doctor’s office, or their after-hours line. If you feel very unwell, call your local emergency number.

Questions to take to your appointment

  1. 1Is my absolute count off, or only the percent?
  2. 2Could a recent illness or my medicines explain it?
  3. 3Should we repeat the count in a few weeks?

Read together with

Doctors rarely read Neutrophils alone. These usually sit next to it.

Quick answers

What is the neutrophils blood test?

Neutrophils: The most common white blood cells, the first to fight bacteria. Neutrophils are the most common white blood cells and the first to reach an infection. Reports give them as a count and as a percent of all white cells. The count matters more, because the percent shifts when other cell types change.

What is a normal neutrophils level?

For most adults, neutrophils is typically 1.56 to 6.45 x10^3/µL. Some countries print it in %, so check the unit first. Labs differ a little, so the range printed next to your result is the one to go by.

What does a high neutrophils mean?

A high count most often means the body is responding to an infection, stress or inflammation. A mild rise usually settles once the cause passes. Common reasons include a bacterial infection, such as pneumonia or a bladder infection; physical or emotional stress, hard exercise or recent surgery; steroid medicines, which can raise the count; and smoking, which keeps the count a little higher. A doctor reads it together with your other results and how you feel.

What does a low neutrophils mean?

A mildly low count is common and often harmless, especially after a viral illness. Very low counts raise the risk of infection, so doctors watch how low it goes. Common reasons include a recent viral illness, such as a cold or flu; a naturally lower count, common in people of African or Middle Eastern ancestry; some antibiotics, some seizure medicines or medicines for an overactive thyroid; and low vitamin B12, folate or copper.

What can affect my neutrophils result?

A recent infection, hard exercise, stress, smoking and steroid medicines can all push the count up for a while.

When is my neutrophils result urgent?

A neutrophils result of 0.5 x10^3/µL or less usually needs a doctor's attention the same day. Call your doctor's office or their after-hours line. If you feel very unwell, call your local emergency number.

What should I ask my doctor about my neutrophils?

Questions worth taking to the appointment: Is my absolute count off, or only the percent? Could a recent illness or my medicines explain it? Should we repeat the count in a few weeks?

What this page can’t do

It reads each number on its own.

Doctors read results together — ALT with AST, ferritin with hemoglobin, TSH with free T4. A pattern says more than any single flag.

It doesn't know you.

Your age, your medicines, how you feel and your last result all change what a number means.

It doesn't remember.

Close this page and your results are gone. That's on purpose: nothing was ever sent to us.

We also make Vita: Health Coach, an app for those parts. It reads your whole report with your medicines and history in mind, answers follow-up questions in plain words, and keeps your reports in one place — for you and for the people you look after.

Vita: Health Coach on the App Store

Sources

Stuck on a word? See the medical words. How we choose our sources. More about Vita Health Coach.