The phrase "idiopathic epilepsy" means that a person has seizures without any known cause. The reason behind their epilepsy is unknown. Full definition
The diagnosis of idiopathic epilepsy in the 146 affected dogs was based on a history of more than two seizures in the absence of other medical problems, as defined by normal physical and neurological examinations, as well as normal hematological, serum biochemical, and urine analyses. (iwfoundation.org)
Genetic aspects of idiopathic epilepsy in Labrador retrievers. (iwfoundation.org)
In cases where the cause of the seizure is unknown, it is typically called idiopathic epilepsy. (mypetneedsthat.com)