The first seizure in a dog with primary epilepsy usually occurs between the ages of 6 months and 5 years. (vetneurochesapeake.com)
The diagnosis of primary epilepsy is unfortunately a diagnosis of exclusion after elimination of other causes. (theveterinaryexpert.com)
In primary epilepsy there is no obviously abnormal brain tissue and it is due to a chemical imbalance or to some «faulty wiring» in the brain. (theveterinaryexpert.com)