3. Nail Color And Kidney Disease

Common nail-related symptoms of kidneys disease include side-to-side lines, rough nails with ridges , spoon-shaped or concave nail beds or distinct white streaks and spots. (source)
Patients with chronic kidney disease also tend to have half-white, half-pink nails (2). This is caused by increased concentration of certain hormones and chronic anemia, both symptoms of chronic kidney disease.