Where is the pain from a bone marrow aspiration.
Generally, punctures cause pain when the needle passes through the skin, that's the first point. Secondly, the nerves in the bone are mainly distributed on the periosteum, so when the needle punctures the periosteum, the patient will inevitably feel pain. For these two, before the procedure, when the doctor administers local anesthesia to the patient, injecting the anesthetic into the skin and periosteum can resolve these pain issues. The third type of pain is unresolvable, it's the kind that occurs when the needle enters the bone marrow cavity and creates negative pressure while extracting the bone marrow. At this time, to reduce the patient's pain, the doctor needs to extract more slowly.
