. . . "Uretral injuries may be caused by:Complications from medical proceduresDiseases such as retroperitoneal fibrosis, retroperitoneal sarcomas, or cancers that spread to the lymph nodes near the uretersRetroperitoneal fibrosisRetroperitoneal fibrosis is a rare disorder that blocks the tubes (ureters) that carry urine from the kidneys to the bladder.Read Article Now" . .