Morbidity associated with bone marrow aspiration and trephine biopsy - a review of UK data for 2004.

Adverse events following bone marrow biopsy are rare but poorly documented. Annual UK surveys are building up a data-base on the frequency and nature of such complications, which will provide the evidence on which recommendations can be based. The latest annual survey documented 15 adverse events, mainly hemorrhagic, among 20323 procedures.