What causes a dog to have seizure?

There are many potential causes of seizures in dogs, including:

* Idiopathic epilepsy: This is the most common cause of seizures in dogs, and it is thought to be caused by a combination of genetic and environmental factors.

* Structural brain abnormalities: These can include tumors, strokes, and other injuries to the brain.

* Metabolic disorders: These can include diabetes, liver disease, and kidney disease.

* Toxins: These can include pesticides, herbicides, and other chemicals.

* Infectious diseases: These can include distemper, rabies, and meningitis.

* Trauma: This can include head injuries and other injuries to the body.

In some cases, the cause of a dog's seizures may never be known.