Diagnosing Crohn's vs. UC

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Veteran Member

Date Joined Jul 2007
Total Posts : 2765
   Posted Yesterday 8:52 AM (GMT -6)   
Does anyone know if Crohn's or UC 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 Crohn's and UC just by looking? confused

Thanks for any input you have on this.

Regular Member

Date Joined Oct 2006
Total Posts : 148
   Posted Yesterday 12:03 PM (GMT -6)   
as far as I'm aware, they two disease do have slight differences. Though, I would think that it would be difficult to tell which is which just by the naked eye, it's still good practice to get biopsies and check them out under a scope just to be sure.
25 years old
Diagnosed 9/06 with Pancolitis. The diagnosis was changed 9/20/07 to Crohn's disease.
Located in my large intestines, stomach, and mouth.
Asacol 3 3x's a day reinstated 9/20/07
Colazal 3 3x's a day which was stopped 9/11/07
Can not tolerate Prednisone in the slightest amount
Imuran 100mg a day. Which I started 8/24. Stopped 9/11/07
Methylpred 40 mg a day.


Veteran Member

Date Joined Oct 2004
Total Posts : 3932
   Posted Yesterday 1:57 PM (GMT -6)   
They COULD if you are a classic, textbook case of CD inflammation. However, this is nearly a minority group of us. Everyone being different, their Crohn's seems to be a bit different. The textbook description of CD in the bowels is diseased tissue* healthy* diseased* healthy. But the skip areas can often be feet between them.

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