What are the risks of bone marrow aspiration and biopsy?
Bleeding and discomfort often occur at the biopsy site. Infection and hematoma may also develop. In rare instances, the heart or a major blood vessel is pierced when marrow is extracted from the sternum during bone marrow biopsy. This can lead to severe hemorrhage. Source: The Gale Group. Gale Encyclopedia of Medicine, 3rd ed.