**2.1 Endoscopy and enteroscopy**

Endoscopy may confirm the IBD diagnosis in most cases up to 90% of patients with Crohn disease or Ulcerative colitis. It allows a detailed examination of the mucosa of terminal ilium, colon and rectum. It is considered the gold standard exam for IBD diagnosis. Enteroscopy is indicated in patients with normal colonoscopy and gastroscopy but present suspection of Crohn disease. Enteroscpy may be diagnostic or therapeutic with dilation of strictures areas (**Figure 3**) [22].
