They way I understand it, there are so many similarities that it can be difficult to diagonose one vs. the other. I, for example, have what my GI dr refers to as Crohn's Colitis - meaning I am part of the small percentage for whom they cannot differentiate.
While UC tends to stay in your intestinal/colon area, Crohn's can affect all parts of your body. The first time I got really sick I had skin rashes and eruptions, a raspberry-looking rash on my leg (indicator of Crohn's) and sores all in my throat and esophogas so I couldn't swallow. But the primary inflammation after that was in my intestinal area. There is a test they can do, but it is expensive and insurance doesn't cover it, and my results were inconclusive. I was on 6mp and it didn't help, after I weaned off the prednisone I got sick again. I am on Remicade now for over a year, and while I have some symptoms, I am for the most part feeling great.
Good luck to you!! :)
32 yr old Female
Currently on Remicade, Oxycodone, Protonix, trying to remember to take Multivitamin and Calcium, need to start taking Probiotics and Omega 3-6-9
Presently healing from a flare and 2 week hospital stay, during which abcess was drained by surgeon