Symptoms and Signs of Urinary Tract Infection (UTI)

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Medically Reviewed on 12/2/2022

Doctor's Notes on Urinary Tract Infection (UTI)

urinary tract infection is an infection anywhere in the urinary tract. Infections of the urethra (urethritis) and the bladder (cystitis) are common lower urinary tract infections. Urinary tract infections are sometimes referred to as UTIs and are most commonly caused by bacteria. Most commonly, the causative bacteria are those that normally live in the human intestines. The bacterium Escherichia coli (E. coli) causes the majority of UTIs.

Signs and symptoms of urinary tract infection include:

Other possible associated symptoms may include:

What Is the Treatment for Urinary Tract Infection (UTI)?

Antibiotics are the mainstay of treatment for urinary tract infections. A number of different antibiotics may be used to treat this condition. It is important to take the full course of antibiotics as prescribed, even if the symptoms have gone away, to prevent recurrent infections. Severe cases of urinary tract infection may require treatment with intravenous (IV) antibiotics.

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Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.