The IMSS performs systematically the data updating of patients with renal replacement therapy (RRT) by an electronic record management referred as: Census patients with Chronical Renal Failure (CIRC) which aims to meet the prevalence of patients with chronic renal failure and the behavior of RRTat the IMSS. A retrospective study includes 212 secondary hospitals with dialysis programs, with both pediatric and adult patients. CIRC data obtained from January to December 2014, number and nominal bonds of peritoneal dialysis (PD) and hemodialysis (HD). Prevalence of patients and therapies by delegation, distribution by gender and age, cause of kidney disease, morbidity and mortality were identified. 55,101 patients, of whom 29,924 were male (54 %) and 25,177 women (46 %), mean age was 62.1 years (rng: 4-90); 20,387 were pensioners (36.9 %). The causes of renal failure were: diabetes 29,054 (52.7 %), hypertension 18,975 (34.4 %), chronic glomerulopathies 3,951 (7.2 %), polycystic kidneys 1,142 (2.1 %), congenital 875 (1.6 %) and other 1,104 (2 %). HD was given in 41 % of patients, and the remaining 59 % DP; the annual cost was 5,608,290,622 pesos. The increased prevalence of diabetes mellitus and hypertension affect the onset of RRT, which show a catastrophic financial outlook for the Institute.