<unk>  itself is a symptom, not a disease. It is often associated with other symptoms of kidney failure, such as lack of appetite, weakness, nausea and vomiting. These are mostly the result of buildup of toxins in the blood which would normally be removed by healthy kidneys.
Anuria
Crystalluria
Pyuria
Polyuria
Oliguria
Dysuria
Proteinuria
Nocturia