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 uretersKidney stone diseaseRadiation to the belly area TraumaSymptomsAcute or emergency symptoms may include:Abdominal painAbdominal swellingBack painBlood in the urineDecreased alertness, including comaDecrea