Urinary tract infection

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Urinary tract infection (UTI) is a bacterial infection that affects any part of the urinary tract. Symptoms include frequent feeling and/or need to urinate, pain during urination, and cloudy urine.[1] The main causal agent is Escherichia coli. Although urine contains a variety of fluids, salts, and waste products, it does not usually have bacteria in it.[2] When bacteria get into the bladder or kidney and multiply in the urine, they may cause a UTI.

The most common type of UTI is acute cystitis often referred to as a bladder infection. An infection of the upper urinary tract or kidney is known as pyelonephritis, and is potentially more serious. Although they cause discomfort, urinary tract infections can usually be easily treated with a short course of antibiotics with all no significant difference between the classes of antibiotics commonly used.[3]

Contents

Signs and symptoms

The most common symptoms of a bladder infection are burning with urination (dysuria), frequency of urination, an urge to urinate, no vaginal discharge, and no significant pain.[4] An upper urinary tract infection or pyelonephritis may also present with flank pain and a fever. Healthy women have an average of 5 days of symptoms.[4]

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