I love the idea of medical related tattoos! I can't wait to see yours. I have a very small tatoo on my right wrist (a tiny ladybug with my daughter's name). I have often thought about a medical related tattoo on my shoulder.....now that you've done it, I am seriously considering it.
The tattoo on my wrist hurt like h#@L!! The tattoo artist stated that this was due to the fact that there is no fat between the skin and the bone on the wrist. Whatever the reason..I still remember that pain LOL
Peace and Blessings
Look For The Good and Praise It!