Understanding Your Diagnosis
Bone Marrow Biopsy
A bone marrow biopsy involves removing a small sample of the bone marrow inside your bones for testing. Bone marrow is a soft tissue in the center of most large bones. It makes most of the body's blood cells. The biopsy is done using a small needle inserted into the bone
A lumbar puncture (LP) or spinal tap may be done to diagnose or treat a condition.