This is a site of one of my followers. I really thought this blog was well written. In the medical field many times MRI scans cannot be performed, even though they are needed because the tattoo is less than a year old. Many colors contain metal in them. The Magnet from the MRI causes the tattoo to heat up and you can guess what that feels like. BURNS really bad! Blisters etc. can be caused not to mention feeling like you are on fire. Anyway, the article is well written so thought I would reblog and share with you all.