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Bone marrow aspiration

Definition

Bone marrow is the soft tissue inside bones that helps form blood cells. It is found in the hollow part of most bones. Bone marrow aspiration is the removal of a small amount of this tissue in liquid form for examination.

Bone marrow aspiration is not the same as bone marrow biopsy. A biopsy removes a core of bone tissue for examination.

How the Test is Performed

Bone marrow aspiration may be done in your health care provider's office or in a hospital. The bone marrow is removed from your pelvic or breast bone. Sometimes, another bone is selected.

Marrow is removed in the following steps:

The bone marrow fluid is sent to a lab and examined under a microscope.

How to Prepare for the Test

Tell your provider:

How the Test will Feel

You will feel a sting and slight burning sensation when the numbing medicine is applied. You may feel pressure as the needle is inserted into the bone, and a sharp and usually painful sucking sensation as the marrow is removed. This feeling lasts for only a few seconds.

Why the Test is Performed

Your provider may order this test if you have abnormal types or numbers of red or white blood cells or platelets on a complete blood count.

This test is used to diagnose:

It may help determine whether cancers have spread or responded to treatment.

Normal Results

The bone marrow should contain the proper number and types of:

What Abnormal Results Mean

Abnormal results may be due to cancers of the bone marrow, including:

Abnormal results may also be due to other causes, such as:

Risks

There may be some bleeding at the puncture site. More serious risks, such as serious bleeding or infection, are very rare.

References

Bates I, Burthem J. Bone marrow biopsy. In: Bain BJ, Bates I, Laffan MA, eds. Dacie and Lewis Practical Haematology. 12th ed. Philadelphia, PA: Elsevier; 2017:chap 7.

Choby BA. Bone marrow aspiration and biopsy. In: Fowler GC, ed. Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Philadelphia, PA: Elsevier; 2020:chap 220.

Vajpayee N, Graham SS, Bem S. Basic examination of blood and bone marrow. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 31.

Schedule An Appointment

Contact Atlanta Obsetrics and Gynaecology at The Womens Center Millennium Hospital - 404-ATL-BABY

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Review Date: 6/17/2024

Reviewed By: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.