Kidney cysts can occasionally lead to 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).
June 30, 2015