OBJECTIVE:The purpose of this paper is to provide information to the reader on warnings and the use of warnings with children, to prevent accidental injuries. METHODS: A literature review was used to present research findings related to child warnings. RESULTS: This paper provides a basic introduction to accidental injuries, susceptibility of children, warnings, the effectiveness of warnings, and guidelines for designing effective warnings. CONCLUSION: While most warnings concerning children focus on adult caregivers, there are warnings for children that appear effective, especially when combined with other methods of hazard control and injury prevention. Additional research on warnings geared toward children is needed.