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Childhood epilepsy. Epilepsies that present during childhood pose unique challenges and include developmental and epileptic encephalopathies, specific distinctive constellations, and epilepsies with seizure subtypes, such as epileptic spasms, myoclonic-atonic seizures, and myoclonic absences. Self-limited focal epilepsies and genetic generalised epilepsy phenotypes are also evident during childhood. However, determining the cause-whether structural, genetic, metabolic, infectious, or autoimmune-is increasingly relevant. Although history and clinical examination form the fundamental basis of diagnosis, exclusion of epilepsy mimics in childhood can prove challenging, requiring specialist input and supportive electrophysiology. With crucial evidence-based medicine emerging on the treatment of infantile epileptic spasm syndrome, Dravet syndrome, and Lennox-Gastaut syndrome, with a focus on improving outcomes, early identification of surgically remediable epilepsies is crucial for neurodevelopmental outcomes. Practical questions remain regarding pathophysiology, the effects of causative factors and interictal epileptiform activity on cognition, and the efficacy of precision medicine-based approaches based on insights from epilepsy genetics.