 Epilepsy syndromes provide a useful framework for considering the risk and type of emotional dysregulation comorbidities. But variability within and across syndromes needs to be taken into account thus requiring a strict phenotyping by specialists in the filed of pediatric epileptology. Retrospective studies, usually including patients with chronic epilepsies and suffering from a mixed spectrum of epilepsy syndromes introduce biases leading to rather disparate findings. 