Kidney swelling medically known as Hydronephrosis or Hydroureteronephrosis is a condition of dilatation or distention of the urine collecting system due to obstruction in urine outflow distal to the renal pelvis.  Kidney or excretory system works to remove nitrogenous toxins like urea, uric acid, creatinine from the body , kidney also maintain the fluid and electrolyte balance of the...