The cancer of a bladder - makes 3 % of a cancer of all localizations. Risk of disease above at the people working with aromatic amines, and also suffering a chronic cystitis. Most often there is a Schmincke's tumour, less often planocellular and an adenocarcinoma. Illness can be shown in the form of growth with a malignancy or a solid tumour. Distinguish a cancer of a bladder in situ, a superficial cancer (T1 - T2) and a cancer touching a muscular layer and surrounding tissues (T3 - T4). The superficial cancer of a bladder seldom forms metastasises. At the further development of a tumour are amazed in the field of a basin (N1 - N2), retroperitoneal lymph nodes (N3 - N4), and also lungs, a liver, bones. The first sign of illness in 75 % of cases is the hematuria which reason should be established in each case. Other signs of illness - a frequent emiction, a hydronephrosis, inflammatory complications (a cystitis, a pyelonephritis).