Aim of the study is to discuss the reliability of virtual cystoscopy in follow up of patients with non muscle invasive bladder cancers (Ta, T1) who underwent TUR in comparison with conventional cystoscopy. Twenty patients, aging more than 45 years, who underwent TUR of Ta, T1 bladder cancers coming for follow up at Kasr Elainy Hospital, Cairo University. Patients undergoing TUR of TaT1 tumors for the first time are to be excluded from this study.