Bergmann gliosis, a type of reactive gliosis, is a neuropathological condition wherein the astrocytes surrounding the Purkinje cells undergo hypertrophy, multiplication, and fibrous hypertrophy. Some synonyms for Bergmann gliosis include reactive astrogliosis, reactive gliosis, and astrocytosis. Reactive gliosis refers to the process where the astrocytes react to injury or trauma in the nervous system. Meanwhile, astrocytosis is a type of reactive gliosis characterized by the formation of astrocytic scars in the CNS. Bergmann gliosis is commonly seen in various neurodegenerative diseases and can cause neuronal loss and functional impairment. Understanding the different terminologies associated with this condition can aid in accurate diagnosis and effective management approaches.