Most of the recent debate concerning the ethics of physical interventions has focused on the management of aggressive and destructive behaviours, neglecting the management of self-injurious behaviour. This is an important omission, given the extremely serious consequences that can arise from this form of challenging behaviour. The present article reviews types of restraint used to manage self-injury, prevalence of use, and main and side effects of restraint use. It describes some good practice standards and highlights the need for further research and debate in this complex area.