BACKGROUND: Although nonoperative treatment approach is preferred for blunt liver and spleen trauma in childhood, there are significant differences in the algorithms used between clinics. Along with the absence of grade V liver and spleen injury in the American Pediatric Surgical Association (APSA) guideline, approach to high-grade liver and spleen injury is still controversial. The aim of this study is to present our experience in non-operative treatment approach to patients with high-grade liver and spleen injury.