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    Bone Marrow Aspiration and Biopsy

    Risks continued...

    You will lie down for 30 to 60 minutes after the biopsy so the site can be checked for bleeding. If you had a sedative, you will need someone to drive you home after the biopsy.

    You may feel sore at the biopsy site for several days. Ice packs to the site, walking, and pain medicine, such as acetaminophen (Tylenol), can be used to help you feel better.

    Call your doctor immediately if you have:

    • More tenderness, pain, redness, or swelling at the biopsy site.
    • A fever.
    • Bleeding or drainage, such as pus, from the biopsy site. If you are bleeding, put pressure on the site and call your doctor.


    A bone marrow aspiration and biopsy removes a small amount of bone and a small amount of fluid and cells from inside the bone (bone marrow). It is often done to find the reason for many blood disorders and may be used to find out if cancer or infection has spread to the bone marrow.

    Biopsy results are usually ready in 1 to 7 days. But it may take several weeks to get the results if genetic tests are done on the sample. The bone is put into a solution that breaks down its calcium before it is stained. The bone marrow sample is often treated with special dyes (stains) to see any changes in the blood cells more clearly.

    Bone marrow biopsy and aspiration

    The marrow has normal amounts of fat, connective tissue, and iron. Normal numbers of both mature and immature (growing) bone marrow cells are present.

    No signs of infection are seen.

    No cancer cells, such as leukemia, lymphoma, or multiple myeloma, are seen.

    No cancer cells have spread from other cancer sites, such as breast cancer.


    The cells in the bone marrow do not look normal.

    There are too many or too few bone marrow cells. The bone tissue does not look normal.

    Too much iron or too little iron (iron deficiency anemia) is seen in the bone marrow.

    Signs of infection are seen in the bone marrow.

    Cancer cells, such as leukemia, lymphoma, or multiple myeloma, are seen.

    The bone marrow has been replaced by scar tissue.

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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