Does anyone know if UC or Crohn's can be diagnosed through a blood test? Or does a GI have to scope you, take a tissue sample, and then send it off to a lab?
I was first diagnosed with Crohn's after a colonoscopy, and the GI diagnosed me just by looking at my colon. Can they really tell the difference between UC and Crohn's just by looking?
Thanks for any input you have on this.