The two kidneys are responsible with urine production, and they are situated one on each boundary of the abdomen.
A kidney infection may grow very cool, and it is mostly announced by symptoms like sickness, fever, blood in the urine or grief in the loin. Not forever, a kidney infection reveals such symptoms, sometimes you just feel bad and don't know exactly why.
It is important that you go to the physician and take an urine ordeal, because the surgeon must know what letters of bacteria caused the infection. More tests may be necessary, especially if the physician suspects a kidney abnormality or a kidney pebble.
Usually, kidney infections grow from cystitis, because the bacteria that caused that disease sometimes travels up and infects the kidney.