Fifteen females with various radiation-induced lesions of the urinary tract (urinary fistulas alone or in combination with uni- or bilateral ureteral strictures) received surgical treatment using isolated intestinal segments. The above surgical intervention reestablished natural urination in 9 patients. They were relieved from continuous urine leakage into the vagina and/or from nephrostomas. Heterotopic urine derivation was performed in 6 patients. Thus, restoration of natural urination in most patients with postradiation lesions can be performed only in usage of isolated intestinal segments. In some cases heterotopic urine derivation is indicated.