Feasibility of a Minimally Invasive Diagnostic Algorithm in Suspected Crohn's Disease

This study is testing a less invasive way to diagnose Crohn's disease — an inflammatory bowel condition — in young adults. Instead of going straight to colonoscopy, the approach uses stool tests, blood tests, and imaging to confirm the diagnosis with fewer procedures. **You may be eligible if...** - You are between 18 and 40 years old - You have had ongoing or recurring diarrhea and/or abdominal pain for more than a month, along with certain elevated stool or blood markers suggesting bowel inflammation **You may NOT be eligible if...** - You have previously had intestinal surgery - You have celiac disease or a detectable intestinal infection (bacteria or parasites) - You have a suspected bowel obstruction - You recently took NSAIDs or opioid-like pain medications - You are pregnant or breastfeeding - You have a known gastrointestinal disease other than a functional one - You have kidney problems Talk to your doctor to see if this trial is right for you.