During Bone Marrow Aspiration, the patient typically lies on their side or abdomen, and the skin over the puncture site (usually the hip bone or sternum) is cleaned and numbed with a local anesthetic. A special needle is then inserted into the bone marrow cavity, and a syringe is used to withdraw a small amount of liquid bone marrow along with cellular material. The procedure is performed under sterile conditions to minimize the risk of infection. Once the sample is collected, it is sent to a laboratory for analysis by a hematologist or pathologist. Bone Marrow Aspiration is generally well-tolerated and associated with minimal discomfort and risks.