The kidneys play a vital role in maintaining the body’s health. NorthShore University HealthSystem nephrologists diagnose and manage patients with a wide variety of diseases and conditions impacting kidney health. Kidney disease is often without symptoms, though some examples include blood in the urine and swelling of the lower extremities or facial area. While there are a number of different causes for kidney problems, certain health problems, such as diabetes and hypertension, are closely linked to kidney disease. All diabetics should be screened for kidney disease. Your primary care physician can refer you to a nephrologist.