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How does cystoscopy help investigate recurrent urinary tract infections?

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The most common cause of urinary tract infection is invasion into the urethra of Escherichia coli, a type of bacterium that normally inhabits the bowel. — urinary tract infection The most common cause of urinary tract infection is invasion into the urethra of *Escherichia coli*, a type of bacterium that normally inhabits the bowel.

In the context of recurrent urinary tract infections (UTIs), a cystoscopy is a diagnostic procedure used to investigate the interior of the bladder and urethra.1

During this procedure, a specialized viewing instrument called a cystoscope is inserted into the urethra and bladder. This allows medical professionals to visually inspect the tissues for abnormalities that may contribute to persistent or recurring infections, such as structural issues, obstructions, or other underlying pathologies. Additionally, the cystoscope enables the collection of tissue samples for biopsy, which can help rule out non-bacterial causes or identify specific conditions that might be complicating the patient's health.21

By providing a direct view of the urinary tract's interior, cystoscopy serves as a critical tool for clinicians to identify factors that prevent standard antibiotic treatments from successfully eradicating the infection.1