Many patients ask why we need to draw blood and how much is taken. Blood is drawn from a vein in your arm and the amount drawn can vary significantly based on the type of procedure and your body weight, we also do a blood draw for the post-injection portion of our stem cell procedure protocol. The growth factors that we use to grow your stem cells and enhance your procedure are contained in your blood platelets. These same growth factors and blood platelets are used for our platelet rich plasma and platelet lysate procedures. More information on platelet procedures can be found here.