An MRI (magnetic resonance imaging) scan creates detailed pictures of the inside of the body. The test is painless. All you'll need to do is hold still for several minutes at a time so the pictures come out clear. Watch this video to get an idea of what happens. Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.