Why get tested?
To evaluate the type, quantity, and maturity levels of the blood cells present in the marrow; to evaluate the fibrous structure of the marrow; and sometimes to collect a sample of marrow for more specific testing

When to get tested?
When a patient is anemic without an obvious cause and/or has a condition or cancer that may be affecting blood cell production; sometimes when a doctor is investigating a fever of unknown origin, often when the patient is immuno-compromised

Sample required?
A bone marrow sample collected primarily from the hip bone (pelvis) or sternum; sometimes collected from a vertebrae or the femur (thigh bone)