Indwelling urinary catheters remain one of the most commonly used clinically invasive devices across the NHS and social care in the UK. The problems associated with the prolonged use of catheters are widely referenced. Healthcare-acquired infections (HCAIs) currently result in 5,000 preventable deaths a year, with 20% of all HCAIs associated with the urinary tract. Many staff have learned catheterisation techniques in their early careers, with no need for a formal review of skills and knowledge. This has perhaps contributed to some historical and now outdated tasks still being performed. The evidence for best practice when managing indwelling catheters is reflected in national and international guidelines, which have recently undergone a complete overhaul. This article explores common practices and best practice evidence to assist with safe and effective management of these essential but often risky devices.