Urinary Tuberculosis (UTB), also known as Genitourinary Tuberculosis (GUTB), is a form of tuberculosis (TB) that primarily affects the kidneys, bladder, and other parts of the urinary system. It is caused by the Mycobacterium tuberculosis bacterium, the same pathogen responsible for pulmonary tuberculosis (lung TB). While TB most commonly affects the lungs, it can spread through the bloodstream to other organs, including the urinary tract.