What Are the Causes of a Swollen Kidney?
Kidney diseases are characterized by a decrease in kidney function for three or more months consecutively, notes the National Kidney Foundation. The kidneys serve a vital role in removing waste and excess fluid from the body through urination. Various factors can hinder this process, causing fluid retention, toxins to build up and chronic diseases in the kidneys that become life threatening. A typical symptom of kidney disturbance is inflammation or swelling. Causes range from urine reflux to coexisting medical conditions.