Swelling. Another important task of your kidney is to remove extra fluid from your organism. And, of course, ill kidney fails this task entirely. This symptom shows itself with swelling in the lower area of your body as the moisture gathers there with no out. You should check out your legs, feet, and ankles. In some cases, fluid can cause swelling of your face and even hands. Doctors call this stage edema, and it is a serious symptom that means you failed previous signs of kidney disease.