The endoscopy reaches the upper part of the small intestine through the upper gastrointestinal endoscopy and reaches the final section of the small intestine (the last 20 cm of the urethra) through the colonoscopy (lower endoscopy). During the endoscopy, we can take biopsies from the end of the ileum, Lymphoma, etc.), and the central region of the intestine can not be seen by conventional endoscopy, but by capsule.