👉 Apheresis is a surgical procedure that involves removing blood from the body through a small opening called an aorta in the arm. This allows doctors to remove damaged or diseased cells and tissues, which can be used for research purposes or for treatment of specific diseases. Apheresis is often performed on patients who have received blood transfusions, but it can also be used to treat certain conditions such as hemophilia, which causes a lack of blood in the body.