A urinary tract infection is a common bacterial infection that affects the bladder. People with this infection, which is also called a UTI, typically experience symptoms that include increased urinary urgency and frequency. Other symptoms of a UTI are blood in the urine, burning during urination and pelvic pain.

Urinary tract infections -- or UTIs -- are common bacterial infections that affect your urinary system. The University of Maryland Medical Center indicates that UTIs are much more common in women than in men. In fact, 50 percent of women are likely to experience at least one UTI.

Frequent urination is characterized by a need to urinate more often than normal, report doctors at the National Institutes of Health (NIH). Nocturia is a condition that causes patients to have to urinate more frequently during the night.