Retroperitoneal haematoma following blunt or penetrating trauma may arise f
rom injuries to bone, major vascular structures, hollow viscera or solid or
gans. Clinical significance varies from inconsequential to fatal. Although
the guidelines for exploration are clear-cut during laparotomy for associat
ed intra-abdominal injuries, this is not the case with isolated retroperito
neal haematoma. Lateral and pelvic haematomas may be selectively explored a
nd central haematomas always need exploration. All penetrating wound tracts
should be explored, irrespective of the site of the haematoma, to exclude
vital structural injury.