This chapter talks about color, amount and odor of urine or stool with its diagnosis and treatment. Color of urine, odor of urine-associated diseases, amount of urine-associated diseases, tests and treatment, and color of stool-associated diseases, diagnosis, symptoms and treatment are discussed in this chapter in the table format. Amount of urine-associated diseases are diabetes mellitus, pregnancy, urinary tract infections, overactive bladder, urinary incontinence, stroke or neurological disorders, enlarged prostate, interstitial cystitis, and medications –diuretics.