An infection within the urinary system (kidneys, ureters, bladder, and urethra) most commonly caused by bacteria. Most infections involve the bladder and urethra. Synonyms: UTIRelated Articles: Who We ArePregnancy After Spinal Cord InjuryInfectious Respiratory Conditions After SCIPain After Spinal Cord InjuryMicrobiome in Spinal Cord Injury, The