Urinary tract infections (UTIs) are one of the most common pathologies encountered in general practice. However, with increasing bacterial resistance to antibiotics, their treatment is becoming increasingly complex. Extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) pose a particular challenge due to their increased resistance to many commonly used antibiotics. The aim of this thesis is to study the management of such infections by general practitioners in Bas-Rhin and to suggest possible avenues for improvement.