Urinary Tract Infections Urethritis Cystitis and Pyelonephritis

The structure of the urinary tract reduces the likelihood of infection by preventing urine from flowing backward toward the kidneys and by washing bacteria out of the body with the normal flow of urine. In men, the prostate gland also produces secretions that slow bacterial growth. Urine is normally sterile. However, urinary tract infections are common, especially among women. An 287 obstruction of the urinary tract (such as a kidney stone or an enlarged prostate Urinary gland) also increases...