Brain abscess(BA)is a purulent infectious disease of the central nervous system,which can form an envelope-encapsulated pus cavity in the brain parenchyma.The rapid progression and poor prognosis of brain abscess make its clinical management challenging.There is a certain consensus on the diagnosis and treatment of brain abscess,while the discovery of new causative organisms,the introduction of new diagnostic techniques,new findings on the prognosis of the disease,and many controversies that are still being explored,such as the use of glucocorticosteroids and their impact on the therapeutic effect,and the selection of surgical methods,all represent the vigorous development of the field of research on this disease.This article reviews the current status of the treatment of brain abscess and its research progress,so as to provide a reference for the clinical diagnosis and treatment of brain abscess.