2- Swelling of the legs
The baseline of renal failure is an impairment in the normal function of the kidneys to process and eliminate urine. Therefore, one of the main symptoms patients may report is liquid retention, which is often detected in the lower extremities. Swelling of the legs is common in kidney and liver problems, but not for the same reasons. In the liver, it is caused by a deficiency in blood proteins while swelling related to the kidneys is an
accumulation of body fluids that cannot be eliminated through the urine. This symptom is clinically named edema, and it is possible to experience edema in many other body parts, especially the face, hands and feet.