Crohn's disease causes inflammation and irritation in the digestive tract, most commonly in the last part of the small intestine. Symptoms of Crohn's disease are very similar to ulcerative colitis with manifestations such as abdominal pain, diarrhea, fever... Therefore, diagnostic imaging tests such as abdominal ultrasound, colonoscopy, CT, MRI, MR tomography will help doctors make an accurate diagnosis and have a prognosis for appropriate and effective treatment.