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Bone marrow test symptoms. Bone Marrow Test: Procedure, Types, and What to Expect

What is a bone marrow test. Why might you need one. How is a bone marrow test performed. What are the different types of bone marrow biopsies. Are there any side effects from a bone marrow test. How long does it take to get results from a bone marrow biopsy.

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Understanding Bone Marrow Tests: Purpose and Importance

A bone marrow test is a crucial diagnostic procedure that allows medical professionals to examine the cells within your bone marrow. This spongy tissue, found inside your bones, is responsible for producing blood cells. The test is primarily conducted to detect the presence of cancer cells in the bone marrow or to evaluate the effectiveness of ongoing treatments.

Bone marrow tests are particularly significant for certain types of cancers, including:

  • Lymphomas
  • Leukemias
  • Myelomas

However, these tests can be performed for any cancer type if there’s a suspicion of bone marrow involvement or to rule out such involvement.

Why Might You Need a Bone Marrow Test?

There are several reasons why your doctor might recommend a bone marrow test:

  1. To diagnose or rule out certain blood disorders
  2. To check for the spread of cancer to the bone marrow
  3. To monitor the effectiveness of cancer treatments
  4. To evaluate unexplained anemia or other blood cell abnormalities
  5. To assess bone marrow function before certain treatments

Types of Bone Marrow Tests: Aspiration and Trephine Biopsy

There are two main types of bone marrow tests, each serving a specific purpose in diagnosis and treatment evaluation:

1. Bone Marrow Aspiration

This procedure involves drawing liquid bone marrow into a syringe. It provides information about the cellular components of the bone marrow.

2. Bone Marrow Trephine Biopsy

In this procedure, a small core of bone marrow tissue (usually 1-2cm long) is removed in one piece. This type of biopsy offers insights into the structure of the bone marrow within the bone.

Often, both tests are performed simultaneously to provide a comprehensive assessment of the bone marrow.

The Bone Marrow Test Procedure: Step-by-Step Guide

Understanding what happens during a bone marrow test can help alleviate anxiety and prepare you for the procedure. Here’s a detailed breakdown of the process:

  1. You’ll be asked to sign a consent form after receiving information about the procedure.
  2. You may need to change into a hospital gown, though you can usually keep your underwear on.
  3. You’ll lie on your side with your knees tucked up to your chest.
  4. The area where the sample will be taken (usually the hip bone) is cleaned with antiseptic.
  5. A local anesthetic is injected to numb the area.
  6. A thin needle is inserted through the skin into the hip bone.
  7. For aspiration, a small amount of liquid bone marrow is drawn into the needle using a syringe.
  8. If a trephine biopsy is also being performed, a second, slightly larger needle is used to remove a small piece of bone marrow.
  9. The entire procedure typically takes about 30 minutes.

Preparing for Your Bone Marrow Test: What You Need to Know

Proper preparation can help ensure a smooth and comfortable experience during your bone marrow test. Here are some key points to keep in mind:

  • Inform your doctor about any medications you’re taking, especially blood thinners.
  • Discuss any allergies or previous reactions to anesthesia.
  • Arrange for someone to drive you home after the procedure, especially if you’ll be receiving sedation.
  • Wear comfortable, loose-fitting clothing.
  • Follow any fasting instructions provided by your healthcare team.

Can you eat before a bone marrow test? In most cases, you can eat normally before the procedure. However, if you’re scheduled to receive sedation, you may be asked to fast for a certain period. Always follow the specific instructions provided by your healthcare provider.

Potential Side Effects and Recovery After a Bone Marrow Test

While bone marrow tests are generally safe procedures, they can sometimes lead to certain side effects. Being aware of these potential effects can help you better manage your recovery:

Common Side Effects

  • Bruising at the biopsy site
  • Mild bleeding
  • Pain or discomfort
  • Tingling sensation in the legs

Rare but Possible Complications

  • Infection at the biopsy site
  • Prolonged bleeding
  • Allergic reaction to the local anesthetic

How long does it take to recover from a bone marrow biopsy? Most people can return to their normal activities within 24 hours. However, you may experience some soreness at the biopsy site for a few days. Your doctor will provide specific instructions for care and recovery.

Interpreting Bone Marrow Test Results: What They Mean for Your Health

Understanding your bone marrow test results is crucial for making informed decisions about your health and treatment options. Here’s what you need to know:

Normal Results

Normal bone marrow test results typically show:

  • A healthy balance of blood-forming cells
  • No presence of abnormal cells or cancer cells
  • Normal bone marrow structure and cellularity

Abnormal Results

Abnormal results may indicate:

  • The presence of cancer cells in the bone marrow
  • Blood disorders such as anemia or leukemia
  • Infections affecting the bone marrow
  • Fibrosis or scarring of the bone marrow

How long does it take to get results from a bone marrow biopsy? Typically, you should receive your results within 1 to 2 weeks after the procedure. However, some preliminary results may be available sooner.

Advances in Bone Marrow Testing: New Technologies and Techniques

The field of bone marrow testing is continually evolving, with new technologies and techniques emerging to improve accuracy, patient comfort, and diagnostic capabilities. Some recent advancements include:

1. Immunophenotyping

This technique uses antibodies to identify specific proteins on cell surfaces, allowing for more precise identification of cell types and abnormalities.

2. Flow Cytometry

This method analyzes large numbers of cells quickly, providing detailed information about cell characteristics and potential abnormalities.

3. Molecular Testing

Techniques like PCR (Polymerase Chain Reaction) and FISH (Fluorescence In Situ Hybridization) can detect genetic abnormalities associated with various blood disorders and cancers.

4. Image-Guided Biopsies

The use of imaging technologies like CT or ultrasound can improve the accuracy of biopsy sampling, especially in challenging cases.

How have these advancements improved bone marrow testing? These new technologies have enhanced the precision of diagnoses, allowed for earlier detection of diseases, and in some cases, reduced the need for repeat biopsies.

Living with Bone Marrow Disorders: Coping Strategies and Support

Receiving a diagnosis of a bone marrow disorder can be overwhelming. Here are some strategies to help you cope and find support:

Education and Understanding

Learn as much as you can about your condition. Knowledge can help you feel more in control and make informed decisions about your treatment.

Emotional Support

Consider joining support groups or seeking counseling. Talking with others who understand your experiences can be incredibly helpful.

Lifestyle Adjustments

Make necessary changes to your diet, exercise routine, and daily activities as recommended by your healthcare team.

Communication

Maintain open communication with your healthcare providers. Don’t hesitate to ask questions or express concerns.

Self-Care

Prioritize self-care activities that promote physical and emotional well-being, such as relaxation techniques, hobbies, or spending time with loved ones.

Where can you find support for bone marrow disorders? Many organizations offer resources and support for individuals with bone marrow disorders. Some options include:

  • The Leukemia & Lymphoma Society
  • The Bone Marrow Foundation
  • Be The Match
  • Local hospital support groups

Remember, you’re not alone in this journey. Reaching out for support can make a significant difference in your ability to cope with and manage your condition.

Bone marrow test | Tests and scans

What is a bone marrow test?

A bone marrow test is a way of testing cells from your bone marrow. Bone marrow is the spongy tissue inside your bones that makes blood cells.

Why do I need it?

To find out whether there are any cancer cells in the bone marrow. You might also have one to check whether treatment is working.

How do you have it and how long does it take?

You have a local anaesthetic injection to numb a small area on your hip. The doctor puts a needle into your hip to suck out some bone marrow. The test takes about 30 minutes. You should get your results within 1 or 2 weeks.

Are there any side effects?

Possible side effects can include bruising, bleeding, pain, infection or tingling in the legs.

You have a bone marrow test to check whether there are cancer cells in your bone marrow. Bone marrow is spongy tissue and fluid that is inside your bones. It makes your blood cells. Depending on your cancer type, this test can also check how well your treatment is working. 

A doctor or specialist nurse removes a sample of bone marrow cells or an area of bone marrow in one piece. This is usually from your hip. A specialist doctor can then look at the cells or tissue under a microscope.

You usually have the test in the outpatient department of the hospital. But you may have this on the ward if you are staying overnight in hospital (inpatient).

You’re usually awake for the test. You have a local anaesthetic to numb the area. Some people have medicine to make them drowsy (sedation).

Why might you have a bone marrow test?

Bone marrow tests are usually done for cancers that are most likely to affect the bone marrow, such as:

  • lymphomas
  • leukaemia’s
  • myeloma

But it can be done for any type of cancer. This is usually if your doctor thinks your bone marrow could contain cancer cells, or they need to rule this out for any reason.

Types of biopsy

There are 2 main types of bone marrow test: 

  • bone marrow aspiration
  • bone marrow trephine biopsy

Aspiration means the doctor or nurse draws some liquid bone marrow up into a syringe.

A bone marrow trephine biopsy means they remove a very thin 1 or 2cm long core of bone marrow in one piece.

You usually have both of these tests done at the same time. They give some of the same information to the doctor, but there are differences. The bone marrow trephine shows the structure of the bone marrow inside the bone, whereas the aspiration takes just the bone marrow cells.

What happens

Your doctor will give you information about the procedure and asks you to sign a consent form. This is a good time to ask any questions you have.

You might need to change into a hospital gown. You can usually keep your underwear on.

You lie on your side with your knees tucked up into your chest.

Your doctor or nurse cleans the area with some antiseptic fluid. This can feel cold.

You’ll then have an injection into the skin over the biopsy site (local anaesthetic) to numb the area. They then put a thin needle through the skin into the hip bone. This might be uncomfortable for some, but this only lasts a short time.

Your doctor or nurse draws a small amount of liquid bone marrow into the needle, using a syringe. You might feel a pulling sensation when they start drawing the bone marrow cells out. 

They take this needle out and put the second one in if you are having a trephine biopsy. The aim is to get a small amount of marrow out in one piece.

The whole test takes around 30 minutes.

Take a look at this 2 minute video about having a bone marrow test. 

Transcript

What to expect when you have a bone marrow test

Your bone marrow is the spongy substance in the centre of the bones where the blood cells are made.

You may have a bone marrow test if you have a cancer which affects the bone marrow such as leukaemia, lymphoma or myeloma. if your doctor thinks your bone marrow may contain cancer cells that have spread from another type of cancer or you have a non-cancerous condition.

There are two types of tests. A bone marrow aspiration which takes some bone marrow cells and a bone marrow biopsy which takes samples of the bone marrow and gives more information about its structure.

Usually your doctor takes the sample from the back of your hip bone but you can have a bone marrow aspiration from your breast bone.

You have the test lying on a couch. You may have a sedative beforehand to make you sleepy. The doctor then injects some local anaesthetic to numb the area.

For a bone marrow aspiration they put a needle through your skin and into your bone. Then using a syringe they draw out some liquid bone marrow. You may feel a pulling sensation as they do this.

For a biopsy your doctor uses a slightly bigger needle to take the sample of bone marrow. They turn and push this needle to get the sample. This can be painful as the needle goes in but it doesn’t last for long.

You usually go home about half an hour after the test. If you had sedation you need to wait until you are fully awake. This can take a few hours.

Afterwards your hip will ache for a few days. Taking painkillers helps.

You may also have some bruising. Rarely you may have some slight bleeding from the site. Press on it if you do and if it doesn’t stop contact the hospital.

There is a small risk of infection. Tell your doctor if you have a temperature or the biopsy area becomes red and sore.

You may have some tingling in your leg which will also wear off with time.

Sedation

Some people prefer to have some type of sedative before the test so that they are a bit drowsy. Some hospitals may use gas and air (Entonox) to help relax you instead of sedation.

Children and teenagers often have sedation for this type of test.

We have a children’s cancer section where you can find out about this test if your child has acute lymphoblastic leukaemia (ALL).  

After your bone marrow test

You usually go home the same day if you’re feeling well enough.

You have a dressing over the site, which you should keep on for 24 hours. If you notice any bleeding apply pressure to the area. If it doesn’t stop, contact the hospital.

After the test, your hip might ache for a couple of days. You may need some mild painkillers such as paracetamol to take at home.

As you’re having sedation you’ll need someone with you so they can take you home and stay with you overnight. Also for 24 hours after you shouldn’t drive, drink alcohol, operate heavy machinery or sign any legally binding documents.

Possible risks from having a bone marrow test

A bone marrow test is very safe and any risks are small. 

During the procedure there is a very small risk of damage to nearby structures, but this is very rare.  

Bleeding

It’s not unusual to have a small amount of bleeding from the area where the needle went in. If you notice any heavy bleeding, apply pressure to the area. If it doesn’t stop, contact the hospital.

Bruising

Sometimes blood leaks out of the vein and collects under your skin. This can look like a small dark swelling under the skin (haematoma). Pressing hard once the needle is removed can help.

Infection

There is a small risk of getting an infection in the wound. Tell your doctor if you have a temperature or if the area becomes red and sore. 

Pain

Some people feel uncomfortable and have pain after the local anaesthetic has worn off. Your nurse will tell you what painkillers to take. If you have severe pain or it’s getting worse then you should contact the hospital.

Tingling in your leg

You may have some tingling in your leg which wears off with time.

Getting your results

Your bone marrow test is looked at in the laboratory. The time it takes to receive results depends on the which tests are being done on the bone marrow samples.

Basic results can be available as soon as 24 to 48 hours. Whereas if for example you’re having genetic tests on your bone marrow samples, these results can take a couple of weeks. You won’t get any results at the time of having a bone marrow taken. It’s best to ask your doctor or nurse how long it will take to get them.

Waiting for test results can make you anxious. You might have the contact details of a specialist nurse. You can contact them for information and support if you need to. It may also help to talk to a close friend or relative about how you feel. 

For support and information, you can call the Cancer Research UK nurses on freephone 0808 800 4040. The lines are open from 9am to 5pm, Monday to Friday.

More information

We have more information on tests, treatment and support if you have been diagnosed with cancer.

  • Hoffbrand’s Essential Haematology (8th Edition)
    AV Hoffbrand and D P Steensma
    Wiley Blackwell, 2019

  • The Royal Marsden Manuel of Clinical Nursing Procedures, Professional Edition (10th Edition)
    S Lister, J Hofland and H Grafton
    Wiley Blackwell, June 2020

  • Tissue pathways for lymph node, spleen and bone marrow trephine biopsy specimens
    The Royal College of Pathologists, November 2017

  • ICSH guidelines for the standardization of bone marrow immunohistochemistry
    E E Torlakovic and others
    International Journal Of Laboratory Hematology, 2015. Volume 37, Pages 431 to 449

  • European recommendations and quality assurance for cytogenomic analysis of haematological neoplasms
    KA Rock and others
    Leukaemia, 2019. Volume 33, Issue 19, Pages 1851 to 1867

  • The information on this page is based on literature searches and specialist checking. We used many references and there are too many to list here. Please contact [email protected] with details of the particular issue you are interested in if you need additional references for this information. 

Last reviewed: 

26 Jul 2022

Next review due: 

26 Jul 2025