Crohn's disease is commonly detected with a combination of tests. The gastrointestinal providers at Digestive Health Associates of Texas may begin by discussing your health history, signs or symptoms, and family history of Crohn’s or IBD. After providing an examination, they may order endoscopic tests (such as a colonoscopy and/or an EGD) and laboratory testing of blood and stool samples. CT scans, MRIs, and additional imaging procedures may also be performed to help diagnose Crohn's disease.