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Bone Marrow Biopsy
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What is a bone marrow biopsy? A bone marrow biopsy is a procedure for removing a sample of tissue from the center of a bone for lab tests. Bone marrow is spongy tissue in the center of bones. It produces red blood cells, white blood cells, and clotting cells called platelets. The test results show whether the various types of blood cells are present in normal amounts and are developing normally. Too many or too few of certain types of cells may indicate specific diseases. The test also gives information on some blood functions, such as clotting. When is it used? A bone marrow biopsy helps diagnose blood disorders. These include:
How do I prepare for a bone marrow biopsy? There are no restrictions for eating or drinking before the test. If you will be having a sedative, find someone to drive you home after the test. If you need a minor pain reliever in the week before the test, choose acetaminophen rather than aspirin, ibuprofen, or naproxen. This helps avoid extra bleeding during the procedure. If you are taking daily aspirin for a medical condition, ask your provider if you need to stop taking it before the test. Make sure your provider knows about any medicines, herbs, or supplements that you are taking. What happens during the procedure? You will be given a local anesthetic at the biopsy site to numb your skin and the tissue under your skin. You may also be given a sedative to help relax you during the test. Your provider will make a small cut in the skin. A needle will then be passed through the cut and into the bone. The most common bones used are the breastbone or the back side of the pelvic bone. You may feel pressure when the needle is inserted. Your provider may take 2 samples. The first sample, called aspirate, will be liquid bone marrow that is suctioned into a syringe. The second sample, called a core biopsy, will be a small solid piece of bone marrow. You may have a few seconds of a brief, uncomfortable, pulling feeling when the marrow is removed. The entire procedure usually takes only 10 to 15 minutes. What happens after the procedure? Unless your provider tells you otherwise, there are no special steps to take after the procedure. You may have some soreness and bruising at the biopsy site for a few days. Ask your heath care provider when and how you will get the results of the exam. What are the benefits of this procedure? Lab tests of the bone marrow samples may help your provider diagnose your problem. What are the risks associated with this procedure? This procedure has very few risks. It is not harmful to your bones or marrow.
You should ask your health care provider how these risks apply to you. When should I call my health care provider? After the procedure, call your provider right away if:
Call during office hours if:
 Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File TST5107F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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