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Bone marrow aspiration

In some instances, a bone marrow aspiration is required in order to make a diagnosis. Bone marrow is located in the central cavity of the bones. That is where your blood is produced: red blood cells, white blood cells and platelets. A bone marrow aspiration is occasionally performed during treatment as well in order to check how effective the treatment is. A bone marrow aspiration is performed under sedation, so your child will feel nothing of the procedure.


The examination and the sedation are explained prior to the actual procedure. The medical pedagogical care provider prepares your child and explains what will be done during the procedure.

The examination

A sample of the bone marrow is drawn from the hipbone (pelvis) through a small needle. Sometimes a tiny piece of bone is removed at the same time. The bone marrow and the piece of bone are examined in the laboratory.


A plaster is applied to the puncture site. The site might be sensitive, in which case you may give your child paracetamol.

Should you need any further information, please feel free to ask.