 All patients will be recruited from the urology practice of the studys investigators, Urology department of Urology and Nephrology Center UNC, Mansoura university, Egypt. Patients will be asked to participate after the patient and physician have made a decision that ileal conduit urinary diversion of choice. Those patients meeting all inclusion criteria will be asked to participate in this study with informed consent then obtained. No monetary income will be offered for participation in the study. 