Trauma to the urinary tract presents challenges to the clinician in stabilisation, identifying the site of injury and formulating a management plan. This session looks at some cases that the author has managed and use them to look at the investigation and management. Common causes of trauma are external injury (blunt force trauma such as road traffic injury, animal bites to the perineum, ballistic injury and so on) and also iatrogenic injury. After initial stabilisation, identifying the site of injury is important to plan treatment. Imaging studies, notably excretory urography (IVU) with conventional radiography or CT, and retrograde urethrography, are most useful in this regard and will then allow the surgeon to plan treatment, which might be conservative (placement of a catheter or stent), temporary (tube cystotomy or tube nephrostomy) or permanent (urethrostomy, ureteronephrectomy).