Medical Content Created by the Faculty of the
Harvard Medical School
Doctors can diagnose many problems that cause anemia, some infections, and some kinds of leukemia or lymphoma cancers by examining a sample of your bone marrow (the tissue where blood cells are made). A bone marrow biopsy is the procedure to collect such a sample. It is done using a large needle inserted through the outside surface of a bone and into the middle of the bone, where the marrow is.