Bone marrow aspiration is the removal of a small amount of the liquid portion of the bone marrow through a needle inserted into the bone. It can be done to collect bone marrow for stem cell transplantation or chromosomal analysis, or to monitor treatment for certain types of blood disorders.
The bone marrow sample is examined under a microscope to obtain information to:
More tests of the bone marrow sample can also be done to see if an infection is present and to identify antibiotics that might be used to treat the infection.
A bone marrow biopsy is the removal of bone marrow tissue and is often done with a bone marrow aspiration. A biopsy allows close examination of the bone marrow's structure.
Last Revised: November 12, 2010
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & Brian Leber, MDCM, FRCPC - Hematology
To learn more visit Healthwise.org
© 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.