Assertion: ureteral obstruction | /r/HasSubevent | backflow of urine
Facets:
value: into the kidney
type: TRANSITIVE-OBJECT
Source sentences:
text: Untreated ureteral obstruction can result in backflow of urine into the kidney, which may cause infection or damage to the kidneys.
text: Ureteral obstruction may result in the backflow of urine, which can cause long-term damage to the kidneys.