I have Masters degree with Distinction and Student of the Year Prize in Corrosion of Engineering Materials from Imperial College London, first degree in Chemistry from University of Central Lancashire and also did Technology, Material Science and Engineering and Mathematics from the Open University.
In areas where tattooing is not as closely monitored, people are asked to wait for 12 months to give blood after getting a tattoo. This waiting period ensures that the donor is free of any potential blood-borne diseases which could have been passed on unsanitary equipment.
With many, you will not be deferred from donating. You can begin donating after six weeks. There is no waiting period to donate after receiving a flu shot. Healthy individuals can donate whole blood every 56 days, plasma every 28 days and platelets every 7 days. Donors who give a double red blood cell donation are eligible again after 112 days. Yes, if the piercing was obtained at a facility that is approved by OBI.