Urinary tract infections or UTI (Abbreviation) occur when microorganisms (usually bacteria) colonize the urinary tract.There are several types depending on the main location of the infection in the urinary tract, we have: urethritis, cystitis, prostatitis and pyelonephritis.This complete lesson explains what urinary infections consists of, its etiopathogenesis, classification, diagnosis and treatment.File contains: An editable 20 pages PowerPoint presentation.