<unk>  (Greek pyon "pus" + nephros "kidney") is an infection of the kidneys' collecting system. Pus collects in the renal pelvis and causes distension of the kidney. It can cause kidney failure.
Pyonephrosis
Hydronephrosis
Pyelonephritis
Glomerulonephrosis
Ureteritis
Renal colic
Hemorrhagic cystitis
Oophoritis