c. Certain factors predispose the urinary tract to infection:
Obstructions to urine flow such as strictures or stones.
Systemic infection, which may enter the kidney through the blood or
The presence of other renal disease.
2-25. SIGNS AND SYMPTOMS OF URINARY TRACT INFECTIONS
Infections of the urinary tract may occur with or without symptoms. When
symptoms do occur, they may include the following:
a. Lower urinary tract infections (cystitis, urethritis).
Bacteria/pus in urine.
Sensation of "bearing down" or spasm in suprapubic region.
Urethral discharge (urethritis).
b. Upper urinary tract infections (pyelonephritis).
All the symptoms of a lower UTI, plus: