Urinary tract infections are a well-known hazard associated with the use of indwelling urethral catheters in older people in hospital. These infections can have serious consequences for older people, including an increased risk of death in hospital. This consequence can be minimised by ensuring that all nurses and other healthcare workers consistently incorporate evidence-based guideline recommendations into their routine practice. The background to these infections is explained and the recommendations for minimising risk and enhancing patient safety are described.