Acute disseminated encephalomyelitis（ADEM）is a common inflammatory demyelinating disease of the central nervous system in children.The etiology is not yet clear，but it is currently mainly believed to be related to the activation of autoimmune reactions following infection.ADEM is typically a monophasic disease，unlike other demyelinating diseases such as multiple sclerosis and neuromyelitis optica spectrum disorders.With the increasing recognition，understanding，and detection of myelin oligodendrocyte glycoprotein antibodies in recent years，the diagnosis and treatment of ADEM may further evolve.The diagnosis of ADEM is clinical and requires exclusion of other infectious，inflammatory，neoplastic，and genetic conditions.The acute phase treatment methods include intravenous injection of high-dose corticosteroids，therapeutic plasma exchange，and intravenous immunoglobulin，with a generally good prognosis.This review summarizes the current knowledge on the pathogenesis，epidemiology，clinical features，diagnosis and differentiation，treatment，and prognosis of ADEM in children.

Acute disseminated encephalomyelitis; Myelin oligodendrocyte glycoprotein antibody; Multiple sclerosis; Optic neuromyelitis spectrum disease