About all

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

What is a bone marrow test. Why might you need one. How is a bone marrow test performed. Are there any side effects of a bone marrow test. What types of bone marrow tests are available. How long does it take to get results from a bone marrow test. Can a bone marrow test detect cancer.

Содержание

Understanding Bone Marrow and Its Importance

Bone marrow is the spongy tissue found inside our bones, responsible for producing blood cells. It plays a crucial role in maintaining our body’s immune system and overall health. A bone marrow test, also known as a bone marrow biopsy or aspiration, is a medical procedure that allows doctors to examine the cells within this vital tissue.

The Function of Bone Marrow

Bone marrow serves as a factory for blood cells, producing:

  • Red blood cells (erythrocytes) that carry oxygen throughout the body
  • White blood cells (leukocytes) that fight infections
  • Platelets (thrombocytes) that help in blood clotting

The Purpose of Bone Marrow Tests

Bone marrow tests are primarily conducted to diagnose and monitor various conditions, particularly blood disorders and certain types of cancer. They provide valuable information about the health and function of the bone marrow.

Common Reasons for Bone Marrow Tests

Doctors may recommend a bone marrow test for several reasons:

  1. To diagnose blood disorders such as anemia, leukopenia, or thrombocytopenia
  2. To detect blood cancers like leukemia, lymphoma, or multiple myeloma
  3. To assess the spread of cancer from other parts of the body to the bone marrow
  4. To evaluate the effectiveness of cancer treatments
  5. To investigate unexplained fevers or abnormal blood test results

Types of Bone Marrow Tests

There are two main types of bone marrow tests, each providing different insights into the health of the bone marrow:

Bone Marrow Aspiration

This procedure involves extracting a small amount of liquid bone marrow using a thin needle. It provides information about the cellular composition of the marrow and is often used to diagnose blood disorders and certain types of cancer.

Bone Marrow Trephine Biopsy

In this procedure, a slightly larger needle is used to remove a small core of bone along with the marrow. This sample allows doctors to examine the structure of the bone marrow and is particularly useful in diagnosing certain conditions that affect the bone marrow’s architecture.

Often, both procedures are performed together to provide a comprehensive assessment of the bone marrow’s health.

The Bone Marrow Test Procedure

Understanding the steps involved in a bone marrow test can help alleviate anxiety and prepare patients for the procedure.

Before the Test

Prior to the procedure:

  • Your doctor will explain the test and ask you to sign a consent form
  • You may need to change into a hospital gown
  • You’ll be positioned on your side with your knees tucked up to your chest

During the Procedure

The bone marrow test typically involves the following steps:

  1. The area (usually the hip bone) is cleaned with antiseptic
  2. Local anesthetic is injected to numb the area
  3. A thin needle is inserted through the skin and into the bone
  4. For aspiration, a syringe is used to draw out liquid bone marrow
  5. For biopsy, a larger needle is used to extract a small core of bone marrow

The entire procedure usually takes about 30 minutes to complete.

Potential Side Effects and Recovery

While bone marrow tests are generally safe, some patients may experience mild side effects:

  • Bruising at the biopsy site
  • Mild bleeding
  • Pain or discomfort
  • Infection (rare)
  • Tingling sensation in the legs (temporary)

Most patients can resume normal activities shortly after the procedure. However, it’s important to follow your doctor’s post-procedure instructions carefully.

Interpreting Bone Marrow Test Results

After the bone marrow test, the samples are sent to a laboratory for analysis. A pathologist examines the cells under a microscope and may perform additional tests to provide a comprehensive assessment.

What Can Bone Marrow Tests Reveal?

Bone marrow tests can provide crucial information about:

  • The presence of cancerous cells in the bone marrow
  • The stage and progression of blood cancers
  • The effectiveness of cancer treatments
  • The cause of abnormal blood cell counts
  • The presence of genetic abnormalities in blood cells

Timeline for Results

Typically, patients can expect to receive their bone marrow test results within 1 to 2 weeks after the procedure. However, this timeline may vary depending on the specific tests being performed and the complexity of the analysis required.

Advancements in Bone Marrow Testing

Recent years have seen significant advancements in bone marrow testing techniques, improving both the accuracy of diagnoses and the patient experience.

Minimally Invasive Techniques

Researchers are developing less invasive methods for bone marrow testing, such as:

  • Ultrasound-guided biopsies for improved accuracy and reduced discomfort
  • Liquid biopsies that can detect cancer cells in blood samples, potentially reducing the need for traditional bone marrow biopsies

Advanced Molecular Testing

Modern bone marrow tests often incorporate sophisticated molecular techniques, including:

  • Flow cytometry for precise cell classification
  • Cytogenetic analysis to detect chromosomal abnormalities
  • Next-generation sequencing to identify genetic mutations associated with various blood disorders and cancers

These advanced techniques allow for more accurate diagnoses and can guide personalized treatment strategies.

Preparing for Your Bone Marrow Test

If you’re scheduled for a bone marrow test, proper preparation can help ensure a smooth and successful procedure.

Before the Test

To prepare for your bone marrow test:

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

During the Test

To make the experience more comfortable:

  • Communicate with your healthcare provider about any concerns or discomfort
  • Practice deep breathing exercises to help you relax
  • Ask about listening to music or using other relaxation techniques during the procedure

After the Test

Post-procedure care is important:

  • Rest for the remainder of the day
  • Keep the biopsy site clean and dry
  • Take pain medications as prescribed or recommended
  • Monitor the biopsy site for signs of infection or excessive bleeding
  • Attend follow-up appointments as scheduled

The Role of Bone Marrow Tests in Cancer Diagnosis and Treatment

Bone marrow tests play a crucial role in the diagnosis, staging, and treatment of various types of cancer, particularly blood cancers.

Diagnosing Blood Cancers

Bone marrow tests are essential for diagnosing:

  • Leukemia: A cancer of the blood-forming tissues, including bone marrow
  • Lymphoma: Cancer that begins in the lymphatic system
  • Multiple myeloma: A cancer of plasma cells, a type of white blood cell

Staging and Monitoring Cancer

Beyond initial diagnosis, bone marrow tests are used to:

  • Determine the stage of cancer and its spread
  • Monitor the effectiveness of cancer treatments
  • Check for minimal residual disease (small numbers of cancer cells that may remain after treatment)
  • Guide decisions about further treatment or the need for stem cell transplantation

Informing Treatment Decisions

The results of bone marrow tests can significantly influence treatment strategies:

  • Identifying specific genetic mutations can help doctors choose targeted therapies
  • Assessing the percentage of cancerous cells in the bone marrow can inform the intensity of treatment needed
  • Monitoring changes in the bone marrow over time can help determine when to adjust or change treatments

Bone Marrow Tests in Non-Cancer Conditions

While often associated with cancer diagnosis, bone marrow tests are also valuable in evaluating and managing various non-cancerous conditions.

Blood Disorders

Bone marrow tests can help diagnose and monitor:

  • Aplastic anemia: A condition where the bone marrow fails to produce enough blood cells
  • Myelodysplastic syndromes: A group of disorders characterized by abnormal blood cell production
  • Polycythemia vera: A condition where the body produces too many red blood cells
  • Thrombocytopenia: A low platelet count that can lead to bleeding problems

Infectious Diseases

In some cases, bone marrow tests may be used to:

  • Diagnose infections that affect the bone marrow, such as tuberculosis or fungal infections
  • Investigate persistent fevers of unknown origin
  • Evaluate the extent of systemic infections in immunocompromised patients

Genetic Disorders

Bone marrow tests can also provide insights into genetic conditions affecting blood cell production, such as:

  • Fanconi anemia: A rare inherited disorder that affects bone marrow function
  • Hemoglobinopathies: Genetic disorders affecting hemoglobin structure, like sickle cell disease
  • Storage disorders: Conditions where abnormal substances accumulate in cells, including bone marrow cells

The Future of Bone Marrow Testing

As medical technology advances, the field of bone marrow testing continues to evolve, promising more accurate diagnoses and less invasive procedures.

Emerging Technologies

Several innovative approaches are being developed or refined:

  • Artificial intelligence algorithms to assist in analyzing bone marrow samples
  • 3D imaging techniques for more comprehensive bone marrow assessment
  • Microfluidic devices for capturing and analyzing individual bone marrow cells
  • Gene editing technologies to correct genetic abnormalities in bone marrow cells

Personalized Medicine

The future of bone marrow testing is closely tied to the advancement of personalized medicine:

  • Single-cell sequencing techniques to provide detailed genetic profiles of individual cells
  • Pharmacogenomic testing to predict a patient’s response to specific treatments
  • Integration of bone marrow test results with other health data for comprehensive patient profiling

Improving Patient Experience

Efforts are ongoing to make bone marrow tests more comfortable and accessible:

  • Development of pain-free biopsy techniques
  • Exploration of non-invasive imaging methods that could potentially replace some biopsies
  • Telemedicine integration for remote consultation and follow-up

As these advancements continue, bone marrow tests are likely to become even more valuable tools in diagnosing and managing a wide range of health conditions, while also becoming less burdensome for patients.

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