Urinary tract infection (UTI) is a common presentation in Australian general practice, comprising about 1% of all problems managed. The presentation of UTIs is highly variable, ranging from mild dysuria to severe sepsis, and masquerades are not uncommon. The approach to investigation and management depends on the patient’s age, gender, co-morbidities and presentation. GP registrars are likely to have seen many presentations of UTI in their ED experience, but are often less confident on the approach to investigation, and management of recurrent or complicated infection.