When they work properly, the kidneys respond to excess fluid by eliminating it in the urine. In cases of acute or chronic kidney failure, the kidneys do not maintain normal
. This results in water retention by the feet, legs, eyelids, ankles and hands.
Chronic Kidney Disease
The kidneys contain filtration units known as nephrons, which reabsorb sodium and water for use by the body. Chronic kidney disease makes it difficult for the kidneys to filter wastes properly.