 [ Symptoms ] do the new mammogram screening guidelines apply to women taking hormone therapy [ Disease ] if the upper and lower endoscopy were performed properly then the risk of colon rectal esophageal or gastric stomach cancer should be extremely low since these flexible scopes cannot reach the small intestines however capsule endoscopy seems appropriate as a next step most of the time loss of blood in the gi tract of young people is the result of benign conditions although cancer must always be considered and ruled out i hope that the cause for your sister is symptoms will be identified soon and that it will turn out not to be a life threatening illness sincerely robert a wascher md facs