Bone marrow aspiration
The removal of a small amount of bone marrow (usually from the hip) through a needle.
The needle is placed through the top layer of bone and a liquid sample containing bone marrow cells is obtained through the needle by aspirating (sucking) it into a syringe.
The suction causes pain for a few moments.
Bone marrow aspiration is done to diagnose and follow the progress of various conditions, including anemia and cancer, and to obtain marrow for transplantation