Urethritis is the inflammation of the urethra, often caused by bacterial infection. Learn about the common causes, symptoms, diagnosis, and treatment of urethritis, as well as how to prevent it. WebMD explains the causes, symptoms, and treatment of urethritis, an inflammation of the urethra that is commonly due to infection by bacteria. Urethritis is a condition in which the urethra, or the tube that carries urine from the bladder to outside the body, becomes inflamed and irritated. Urethritis is a lower urinary tract infection (UTI) that causes inflammation of the urethra—the fibromuscular tube responsible for expelling urine from the body in both males and females.
