Definitions for urinary tract infection

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Princeton's WordNet

  1. urinary tract infection(noun)

    any infection of any of the organs of the urinary tract

Freebase

  1. Urinary tract infection

    A urinary tract infection is an infection that affects part of the urinary tract. When it affects the lower urinary tract it is known as a simple cystitis and when it affects the upper urinary tract it is known as pyelonephritis. Symptoms from a lower urinary tract include painful urination and either frequent urination or urge to urinate, while those of pyelonephritis include fever and flank pain in addition to the symptoms of a lower UTI. In the elderly and the very young, symptoms may be vague or non specific. The main causal agent of both types is Escherichia coli, however other bacteria, viruses or fungi may rarely be the cause. Urinary tract infections occur more commonly in women than men, with half of women having at least one infection at some point in their lives. Recurrences are common. Risk factors include female anatomy, sexual intercourse and family history. Pyelonephritis, if it occurs, usually follows a bladder infection but may also result from a blood borne infection. Diagnosis in young healthy women can be based on symptoms alone. In those with vague symptoms, diagnosis can be difficult because bacteria may be present without there being an infection. In complicated cases or if treatment has failed, a urine culture may be useful. In those with frequent infections, low dose antibiotics may be taken as a preventative measure.

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