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Neutropenia

8-minute read

If you have neutropenia and a fever, you should go to the nearest emergency department.

Key facts

  • Neutropenia is a condition where you have a low level of neutrophils, a type of white blood cells.
  • Neutrophils help your body fight infections, so having neutropenia may increase your risk of infections.
  • Common causes of neutropenia include autoimmune diseases, allergies, infections, leukaemia and chemotherapy.
  • If you have fever with neutropenia, seek immediate medical attention as it can be life-threatening.
  • Protect yourself from getting infections with good hygiene, social distancing and a neutropenic diet.

What is neutropenia?

Neutropenia is a condition where you do not have enough neutrophils (a type of white blood cells) in your blood. White blood cells are part of your immune system. They help your body fight infections.

If you have neutropenia, you're at a higher risk of getting infections. The fewer white blood cells you have, the higher your risk of infection.

If you have neutropenia and get an infection, your body may struggle to fight it. This can be very dangerous.

Neutropenia can be:

  • acute — comes on suddenly and may go away quickly
  • chronic — lasts a long time
  • cyclic — comes and goes

What is febrile neutropenia?

Febrile neutropenia means you have neutropenia and a body temperature of 38°C or higher. It is often a complication of cancer treatment. Febrile neutropenia can be life-threatening. It needs immediate medical attention.

What are the symptoms of neutropenia?

Neutropenia itself does not have any symptoms. You may get a fever if you have an infection. This may be your only symptom, and you may not show other usual symptoms of an infection when you have neutropenia.

You may also get symptoms of bacterial infections in different parts of your body, including your:

CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.

What causes neutropenia?

There are many causes for neutropenia, such as:

Neutropenia can also be caused by:

When should I see my doctor?

See your doctor if you know you have neutropenia, or if you have recently had chemotherapy, and you develop symptoms of an infection. This may include any of these symptoms:

If you have neutropenia and a fever, this is a medical emergency. Call triple zero (000) and ask for an ambulance or go to your nearest emergency department.

FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

How is neutropenia diagnosed?

Your doctor can diagnose you by referring you to do a blood test. You may need other tests such as a bone marrow test to find out why you have neutropenia.

ASK YOUR DOCTOR — Preparing for an appointment? Use the Question Builder for general tips on what to ask your GP or specialist.

How is neutropenia treated?

Your treatment for neutropenia will depend on the cause and how severe it is. If you have mild neutropenia, you may not need any treatment.

If your neutropenia is caused by chemotherapy, your treatment may include:

  • blood tests before each cycle of chemotherapy — to check your white blood cell levels. If they are low, they may delay your chemotherapy cycle or lower your dose.
  • granulocyte colony stimulating factor (GCSF) injection — this helps your body make more white blood cells
  • medicines including antibiotics, antivirals or antifungals — to reduce your risk of getting an infection

If you have febrile neutropenia, you will be admitted to hospital. You will be treated with antibiotics and your doctor will arrange blood tests for you.

Neutropenic diet

If you have neutropenia, you may need to follow a neutropenic diet to prevent complications. This diet focuses on food safety and involves:

  • avoiding certain foods that are more likely to cause food poisoning
  • storing and preparing food safely
  • being extra careful with cleanliness to avoid bacteria, viruses, parasites or fungi

Living with neutropenia

There are things you can do to protect yourself from getting life-threatening infections. Here are some tips to protect yourself:

  • Wash your hands regularly after you eat, touch animals or touch anything dirty or used by other people.
  • Stay away from people who are sick.
  • Avoid large crowds and wear a mask if you cannot socially distance.
  • Carefully clean any scratches or wounds you may have with soap and water.
  • Avoid animal litter trays or waste.

What are the complications of neutropenia?

Neutropenia increases your risk of serious infections. The lower your white blood cell count, the higher your risk of getting an infection. These infections can be life-threatening.

Febrile neutropenia emergency letter

If you've had chemotherapy and are at high risk of developing febrile neutropenia, you'll be given an emergency letter. Show this letter to the doctors treating you if you get febrile neutropenia.

Speak with your healthcare provider if you don't have a febrile neutropenia emergency letter.

Can neutropenia be prevented?

You usually can't prevent neutropenia, especially if it's caused by medical treatments.

Resources and support

You can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available 24 hours a day, 7 days a week.

Do you prefer to read in languages other than English?

The Cancer Council website provides fact sheets and videos about cancer in several

languages.

Looking for information for Aboriginal and/or Torres Strait Islander people?

Our Mob and Cancer offers information about cancer and support for living with cancer.

Learn more here about the development and quality assurance of healthdirect content.

Last reviewed: August 2024


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What is neutropenia? | Cancer Council

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