What can someone do to tell if one's kidneys or bladder is going bad?

Urinalysis & studies: Urinalysis wiill reveal possible infection in bladder or kidneys if bacteria or pus cells r present, presence of blood could indicate kidney disease cancer, stones, cystitis, protein can suggest nephritis. Ultrasounds & x-ray ct scans demonstrate whether kidneys &/or bladder are niormal or abnormal, i.e. "going bad". Nuclear renal scans demonstrate abnormal areas, relative function or blockage.