Kidney cysts can occasionally cause complications, including:

  • An infected cyst. A kidney cyst may become infected, causing fever and pain.
  • A burst cyst. A kidney cyst that bursts causes severe pain in your back or side.
  • Urine obstruction. A kidney cyst that obstructs the normal flow of urine may lead to swelling of the kidney (hydronephrosis).
Jul. 18, 2012

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