An outbreak of Pseudomonas aeruginosa urinary tract infections following outpatient flexible cystoscopy

•Pseudomonas aeruginosa urinary tract infections occurred after cystoscopies. •The investigation identified a damaged cystoscope contaminated by P. aeruginosa acting as a relay object. •This outbreak urges us not to trivialize urinary tract infections occurring after cystoscopy. •Patients should be advised to signal the occurrence of urologic symptoms after urologic exploration. The investigation of an outbreak of Pseudomonas aeruginosa urinary...