The pathologies which most needed blood components' transfusions in the Urology Department were (in order of frequency): bladder cancer, kidney cancer, prostate cancer, prostate adenoma. ASA100mg did not influence the transfusion's requirements in VTUR due to BTCC. Tumour stage and higher grade have a greater influence in transfusion's requirements than concomitant AP/AC treatment. The heterogeneity of AP/AC protocols does not allow to establish the benefit of stopping those drugs before surgery in terms of avoiding blood transfusions when performing a VTUR.