In the small intestine, called the small bowel, the stomach connects with the large intestine (colon). Many painful conditions affect the small intestine, such as Crohn's disease and celiac disease (an immune disease caused by eating gluten-containing foods). To determine the cause of your discomfort, the location of the issue in your digestive tract, and the severity of the problem, Advanced Gastroenterology uses several diagnostic procedures. An example of such a procedure is a small-bowel endoscopy, also known as a deep endoscopy. Despite the time and coordination involved in the procedure, some other digestive centers do not offer small-bowel endoscopy, but it helps us diagnose our patients accurately. An endoscopy of the small intestine is a minimally invasive procedure in which we examine your entire 20-foot-long small intestine. An endoscope has a light and a video camera, and we attach special balloons to it. Through the inflating and deflating of the balloons, we move the small bowel over the endoscope. By using the endoscope, we can diagnose the cause of your symptoms in nearly any part of the small intestine. The endoscope can also be used to pass tiny tools into your small bowel, if needed, to treat your condition.