1. Preparation:

  • You may be asked to stop taking certain medications (such as blood thinners) before the procedure.
  • Local anesthesia is used to numb the area, though mild sedation may also be offered.
  • The most common site for aspiration is the pelvic bone (iliac crest), though the sternum (breastbone) or tibia (shinbone) may be used in some cases.

2. The Procedure:

  • The skin is sterilized, and a small incision is made.
  • A specialized needle is inserted into the bone to reach the marrow.
  • A syringe is used to withdraw the liquid portion of the marrow (aspirate).
  • If a biopsy is also needed, a separate tool is used to extract a small piece of bone marrow tissue.
  • The sample is then processed for laboratory analysis or concentrated for therapeutic use.
  • The entire procedure typically 60-90 minutes.

3. Post-Procedure:

  • A bandage is applied to the area, and you will be monitored for a short time.
  • Most people can resume normal activities within 24–48 hours, though heavy lifting and strenuous exercise should be avoided for a few days.