ANATOMY

Detailed explanation-1: -URINE is sterile because it contains no living organisms, unless the person that produces is unlucky enough to have a urinary tract or bladder infection. There are less bacteria in urine than in tap water, for example. But drinking tap water is (generally) safe because it contains no toxic substances.

Detailed explanation-2: -Adult human urine is not sterile. The resident bacterial community may contribute to urinary health and disease in undiscovered ways. Bacterial genomic sequencing and expanded urine cultures techniques are major complementary tools for scientific exploration in urologic research.

Detailed explanation-3: -The bottom line. Despite the rumors, urine is not a sterile substance.

Detailed explanation-4: -"Urine has bacteria in it but it is difficult to detect unless you actually have an infection and have symptoms of an infection.