Abstract des Autors

In athletic exercises, e.g. long distance running, it is possible to get a "red-brown discolouring" of the urine. This hematuria is a complex and serious symptom that demands a carefully urological diagnosis. Beside a multitude of differential diagnostic possibilities like bladder or kidney tumors, inflammations, urolithiasis or traumata this discolouring of the urine can point to the phenomenon of the "exercise related-hematuria". This hematuria could be a symptom of an erythrocyturia, a hemoglobinuria or a myoglobinuria. lt is possible that erosions of the urothelium in the bladder appear in long distance runners. Also changes in the kidney physiology during exercise can extravasate erythrocytes into the lumen of the kidney. On the other side erythrocytes can break, so that this hemolysis leads to a hemoglobinuria, and a myoglobinuria is caused by muscular destroying. Different theories (spiral vessels, defects of erythrocytes, changes in blood circulation) for the explanation of this phenomenon are given, on the other side a reference is given for a practical examination to those working in sports medicine or urology. Verf.-Referat