Ureteral 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 uretersKidney stone diseaseRadiation to the belly areaTrauma SymptomsEmergency symptoms may include:Abdominal pain and swellingSevere flank pain and back painBlood in the urineDrowsiness, decreased alertness,