The purpose of the article is to identify the most characteristic and significant changes in indicators in patients with bladder cancer during diffusion-weighted whole-body imaging (DWIBS). Materials: From September 2009 till 2011 98 patients have been examined (61 (62,24%) with morphologically verified bladder cancer and 37 (37,76%) with cystitis. Results: The study has revealed that the sensitivity of DWIBS-study in detecting bladder cancer is 98,36%, specificity of 10,81 %, the efficacy of 65,38%. Conclusions: DWIBS is an informative noninvasive method for screening diagnostics of bladder cancer, to identify suspicious areas on regional, and distant metastase