All donors must be free of infectious diseases. We’ll take a small blood draw at your initial visit and test it and confirm. Additional Donation Specific Requirements Include: Blood Donors Over 18 years of age Bone Marrow Donors Over 18 and under 55 years of age Free of lower back or hip pain Body mass index of 32 or lower (determined when we measure your height and weight at your first visit) Apheresis Donors We will check your veins at the health screening and let you know if you are eligible for Apheresis donations.