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

What is a bone marrow test. How is a bone marrow test performed. Why might you need a bone marrow test. What are the types of bone marrow biopsies. How long does a bone marrow test take. What are the potential side effects of a bone marrow test.

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The Importance of Bone Marrow Tests in Cancer Diagnosis and Treatment

Bone marrow tests play a crucial role in the diagnosis and monitoring of various blood disorders and cancers. These procedures allow medical professionals to examine the cells within the bone marrow, providing valuable insights into a patient’s condition and guiding treatment decisions.

What is Bone Marrow?

Bone marrow is the spongy tissue found within the hollow interior of bones. It serves as the factory for blood cell production, including red blood cells, white blood cells, and platelets. This vital tissue is essential for maintaining a healthy immune system and proper blood function.

Types of Bone Marrow Tests: Aspiration and Trephine Biopsy

There are two main types of bone marrow tests:

  1. Bone marrow aspiration
  2. Bone marrow trephine biopsy

While both procedures provide valuable information, they differ in their approach and the type of sample collected.

Bone Marrow Aspiration

In a bone marrow aspiration, a doctor or nurse uses a thin needle to draw liquid bone marrow into a syringe. This procedure allows for the examination of individual bone marrow cells.

Bone Marrow Trephine Biopsy

A bone marrow trephine biopsy involves removing a small core of bone marrow tissue, typically 1-2 cm in length. This sample provides information about the structure and composition of the bone marrow within the bone.

Often, both procedures are performed during the same appointment to gather comprehensive information about the patient’s bone marrow health.

The Purpose of Bone Marrow Tests: Detecting Cancer and Monitoring Treatment

Bone marrow tests serve several important purposes in the field of oncology:

  • Detecting cancer cells in the bone marrow
  • Assessing the spread of cancer from other parts of the body
  • Monitoring the effectiveness of cancer treatments
  • Diagnosing blood disorders and other conditions affecting bone marrow function

These tests are particularly valuable for cancers that commonly affect the bone marrow, such as:

  • Lymphomas
  • Leukemias
  • Multiple myeloma

However, bone marrow tests may be recommended for any type of cancer if there is suspicion of bone marrow involvement or to rule out its presence.

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

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

  1. Informed consent: The doctor explains the procedure and obtains the patient’s signature on a consent form.
  2. Preparation: The patient may change into a hospital gown while keeping their underwear on.
  3. Positioning: The patient lies on their side with knees tucked up to their chest.
  4. Cleaning: The doctor or nurse cleans the biopsy site with antiseptic fluid.
  5. Local anesthesia: A local anesthetic is injected to numb the area.
  6. Aspiration: A thin needle is inserted into the hip bone to draw out liquid bone marrow.
  7. Trephine biopsy: If required, a second needle is used to obtain a small core of bone marrow tissue.
  8. Completion: The procedure typically takes about 30 minutes.

Most bone marrow tests are performed in the outpatient department of a hospital, although inpatients may have the procedure done on the ward.

Bone Marrow Test Duration and Results Timeline

How long does a bone marrow test take? The entire procedure, including preparation and the actual sampling, usually lasts about 30 minutes. However, patients should plan to spend more time at the medical facility for pre-procedure preparations and post-procedure monitoring.

When can patients expect their results? Typically, bone marrow test results are available within 1 to 2 weeks. This timeframe allows for thorough analysis of the samples by specialized pathologists.

Potential Side Effects and Risks of Bone Marrow Tests

While bone marrow tests are generally safe procedures, they can cause some side effects. Patients should be aware of the following potential issues:

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

Most of these side effects are temporary and resolve on their own. However, patients should contact their healthcare provider if they experience severe pain, prolonged bleeding, or signs of infection.

Preparing for a Bone Marrow Test: Tips for Patients

To ensure a smooth and comfortable experience, patients can take several steps to prepare for their bone marrow test:

  • Discuss any medications or supplements with your doctor, as some may need to be discontinued before the procedure
  • Inform your healthcare team of any allergies or medical conditions
  • Arrange for transportation home, as driving is not recommended immediately after the test
  • Wear comfortable, loose-fitting clothing
  • Eat a light meal before the procedure, unless instructed otherwise
  • Prepare a list of questions for your doctor to address any concerns

By following these guidelines, patients can help ensure a successful bone marrow test and minimize potential complications.

Advances in Bone Marrow Testing: Improving Accuracy and Patient Comfort

As medical technology continues to evolve, bone marrow testing techniques are also advancing. Some recent developments include:

  • Improved imaging guidance for more precise sampling
  • Enhanced pain management techniques
  • More sensitive analysis methods for detecting cancer cells
  • Minimally invasive alternatives for certain diagnostic purposes

These advancements aim to improve the accuracy of test results while enhancing patient comfort and reducing recovery time.

Are there alternatives to traditional bone marrow tests?

In some cases, alternative methods may be used to gather information about bone marrow health. These can include:

  • Blood tests to detect specific markers
  • Imaging studies such as PET scans or MRIs
  • Liquid biopsies that analyze circulating tumor cells or DNA

However, traditional bone marrow tests remain the gold standard for many diagnostic purposes, particularly in hematological cancers.

The Role of Bone Marrow Tests in Personalized Cancer Treatment

Bone marrow tests play a crucial role in developing personalized treatment plans for cancer patients. The information gathered from these tests can help oncologists:

  • Determine the most effective treatment approach
  • Monitor response to therapy
  • Adjust treatment strategies as needed
  • Assess the need for stem cell transplantation
  • Identify potential clinical trial opportunities

By providing detailed information about the cellular composition of the bone marrow, these tests enable healthcare providers to tailor treatments to each patient’s unique circumstances.

How do bone marrow tests contribute to cancer staging?

Bone marrow tests are an essential component of cancer staging for many hematological malignancies. They help determine:

  • The extent of disease spread
  • The involvement of bone marrow in the disease process
  • The presence of specific genetic markers or mutations

This information is crucial for accurately staging the cancer and developing an appropriate treatment strategy.

Emotional and Psychological Aspects of Undergoing a Bone Marrow Test

While the physical aspects of bone marrow tests are well-documented, it’s important to address the emotional and psychological impact on patients. Many individuals may experience anxiety or fear leading up to the procedure.

To help manage these feelings, consider the following strategies:

  • Educate yourself about the procedure to reduce uncertainty
  • Communicate openly with your healthcare team about any concerns
  • Practice relaxation techniques such as deep breathing or meditation
  • Seek support from family, friends, or support groups
  • Consider speaking with a mental health professional if anxiety persists

Remember that it’s normal to feel apprehensive about medical procedures, and your healthcare team is there to support you throughout the process.

Can patients request sedation for bone marrow tests?

While most bone marrow tests are performed under local anesthesia, some patients may be offered sedation to help them relax during the procedure. This option is typically discussed on a case-by-case basis, considering factors such as:

  • Patient anxiety levels
  • Medical history
  • Potential risks and benefits of sedation

If you’re concerned about discomfort or anxiety during the test, discuss sedation options with your healthcare provider.

Post-Procedure Care: Ensuring a Smooth Recovery

After a bone marrow test, proper care is essential to promote healing and prevent complications. Patients should follow these guidelines:

  • Rest for the remainder of the day following the procedure
  • Avoid strenuous activities for 24-48 hours
  • Keep the biopsy site clean and dry
  • Apply ice to the area to reduce swelling and discomfort
  • Take pain medication as prescribed or recommended
  • Monitor the site for signs of infection or excessive bleeding

Most patients can resume normal activities within a day or two after the procedure. However, it’s important to follow your healthcare provider’s specific instructions for post-procedure care.

When should patients seek medical attention after a bone marrow test?

While complications are rare, patients should contact their healthcare provider if they experience:

  • Fever or chills
  • Severe or worsening pain at the biopsy site
  • Redness, swelling, or discharge from the biopsy site
  • Prolonged or heavy bleeding
  • Numbness or weakness in the legs

Prompt attention to these symptoms can help prevent more serious complications and ensure a smooth recovery.

The Future of Bone Marrow Testing: Emerging Technologies and Techniques

As medical science continues to advance, new technologies and techniques are being developed to enhance bone marrow testing. Some promising areas of research include:

  • Liquid biopsy techniques for less invasive detection of bone marrow abnormalities
  • Advanced imaging methods to guide more precise sampling
  • Artificial intelligence algorithms to assist in the interpretation of bone marrow samples
  • Gene sequencing technologies for more detailed analysis of bone marrow cells
  • Novel biomarkers for early detection of bone marrow disorders

These innovations hold the potential to improve the accuracy, efficiency, and patient experience of bone marrow testing in the future.

How might bone marrow testing evolve in the coming years?

Experts predict several trends in the evolution of bone marrow testing:

  • Increased use of minimally invasive techniques
  • Integration of molecular and genetic testing into routine bone marrow analysis
  • Development of point-of-care testing devices for rapid results
  • Enhanced imaging technologies for real-time visualization during procedures
  • Personalized medicine approaches based on individual bone marrow profiles

These advancements may lead to more accurate diagnoses, tailored treatments, and improved outcomes for patients with bone marrow disorders and related conditions.

Bone Marrow Tests in Research: Advancing Our Understanding of Disease

Beyond their clinical applications, bone marrow tests play a vital role in medical research. These tests contribute to our understanding of various diseases and help in the development of new treatments. Some areas where bone marrow research is making significant contributions include:

  • Studying the mechanisms of leukemia and lymphoma development
  • Investigating the role of bone marrow in immune system function
  • Exploring new targets for cancer therapies
  • Developing improved methods for stem cell transplantation
  • Uncovering the relationship between bone marrow health and systemic diseases

By participating in clinical trials or donating bone marrow samples for research, patients can contribute to these important scientific advancements.

How can patients get involved in bone marrow research?

Individuals interested in contributing to bone marrow research have several options:

  • Participating in clinical trials related to bone marrow disorders
  • Consenting to the use of their bone marrow samples for research purposes
  • Joining bone marrow donor registries for potential stem cell donation
  • Supporting organizations that fund bone marrow research
  • Sharing their experiences to help improve patient care and support

By getting involved, patients can play an active role in advancing our understanding of bone marrow-related diseases and improving treatments for future generations.

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