Pediatric departments, most notably pediatric emergency rooms, readily iden
tify a subgroup of patients with repetitive injuries. Concepts that can be
used to approach this issue are discussed in this article. Based on experie
nce acquired in child psychiatry, a psychopathological hypothesis involving
the concept of self-preservation is put forward. Every child gradually dev
elops a <<body self-preservation function>> that emerges as a result of bot
h early interactions between the child and the environment and identificati
ons, then is built up by educational models on the representations of dange
r and on how to deal with aggressiveness. Although the degree of self-prese
rvation varies, environmental and internal factors constantly interact with
each other. Some of the characteristics of self-preservation deserve to be
investigated and clarified since they may contribute to make some patients
injury-prone.