Fame
While you might walk into a party and get some "oohs" and "ahhs" for being the nephrologist who saved Tommy's cousin Nicky that one time, don't expect TMZ to be following you around trying to get a shot of you at a night club. If you're interested in this job, you've probably already come to the conclusion that show business is well and good, but you'd prefer saving lives to posing for cameras.
That's not to say there's no fame to be had, though. You can become famous in the world of nephrology if you publish groundbreaking research—maybe not the fame you were thinking of, but you'll have plenty of recognition within your own community.
Alright fine, so the National Nephrology Awards (we made that up) probably wouldn't be the most glamorous award party. A bunch of kidney doctors getting together? Make sure the menu doesn't include too much salt, red meat...or basically anything else that's good and tasty.