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The small intestine is part of the digestive system, the small intestine starts from the stomach output and ends at the entrance to the large gut, and its length is about 6 meters, it is difficult to examine in internal endoscopy due to the location and length, but the small intestine inspects in different cases, including: anemia caused by iron deficiency. Hidden bleeding in the digestive system. Chronic diarrhea. There are three essential methods to examine the mucosal of the small intestine: 1. The small intestine image is X -ray imaging, which allows us to look at the lummen -intestine with a contrast matter called barium that is given orally. This investigation is not sensitive, but it allows the detection of surfaces lesions, but it is not possible to exclude the presence of disease in the small intestine if you obtain sound results for X -ray imaging. 2.. An internal laparoscopy of the small intestine. This theorizing is using an endoscope, which is long and fasting at the end of a camera placed in the depth of the small intestine. The investigation is conducted into the anesthesia of the patient, and this investigation can usually see the first third of the small intestine. Similarly, if there is a need, a biopsy can be taken from the mucous membrane, and the pathological signs discovered during the investigation. It is followed today the use of internal theorizing the small intestine to clarify the presence of hidden bleeding of the digestive system, as the internal theorizing of the small intestine can diagnose 30 %50 %of the cases of hidden bleeding in the digestive system. The disadvantages of this exam lies in the following: the limited area that can be investigated. There is a need for special equipment and an experienced doctor in this investigation. This investigation is an invasive, causing discomfort and the possibility of rare complications in the patient. The intestinal endoscopy can perform internal endoscopy through surgery, where the surgeon passes the internal endoscope through a small incision in the intestines through which the device can be transferred to all parts of the small intestine. 3. Capi-laparoscopy is a diagnostic operation that is swallowed by a capsule containing a small, battery and lighting camera, and in this procedure a belt is placed on the patient’s body, this belt contains a computerized reception to store pictures and find the capsule in the entestine. The patient swallows the capsule as it progresses along the digestive system with the help of his natural movement, and he photographed the intestinal cavity. This investigation is simple, reliable and a very small amount of complications. The basic risk of this investigation is to limit the capsule to a narrow area of ​​the digestive system, and it occurs with 0.5 %of the tests, which is required to take it out, and this investigation may not be conducted in the following cases: Pregnancy period. The presence of blockage or narrowing in the small intestine. For patients using electrocardiograms. There is a clear preference to capsule above the inner theorizing of the small intestine in terms of diagnosis, as the laposcopy of the capsule is an insignificant investigation, which is the most accurate investigation into inspecting the smaller cavity. This investigation has been approved by the Food and Drug Administration in the United States of America (FDA), as well as the ministries of health in different countries in the world.