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InfectionDistemper is one of the most common causes of infection related seizure. This is most commonly seen in puppies who haven’t been vaccinated against the distemper virus. If your dog has received the distemper vaccination, this is unlikely to be the cause.
VaccinationsIf a dog has a genetic predisposition to seizures, a simple vaccination can sometimes trigger seizure activity. Talk to your veterinarian about spacing your dog’s vaccines days or weeks apart if he has a history of seizures in the past. Be sure your dog is only receiving vaccinations that are necessary to preserve his health. Some vaccinations have been associated with health problems in dogs.
Metabolic problemsTwo other causes of seizure in a dog include an underactive thyroid and a low blood sugar level level. An underactive thyroid or hypothyroidism is not a common cause of seizures in a dog but it can be successfully treated with thyroid replacement therapy. Certain medications can also lower thyroid hormone levels and should be considered if your dog develops new onset seizures. Low blood sugar can trigger seizure activity and a full workup will be needed to determine why your dog’s blood sugar is low.
Brain tumorMost veterinarians recommend a workup to rule out a brain tumor in a dog older than five years of age that has a new onset seizure as a seizure can sometimes be the first sign of a brain tumor. Certain breeds are more predisposed to brain tumors such as Boxers and Doberman pinschers but they can occur in any breed. If no cause can be found for the seizure and your dog goes on to have more of them, the diagnosis becomes idiopathic seizure disorder which basically means the cause is unknown. Sometimes this can be due to a previous head injury or your dog may be genetically predisposed to seizures. Fortunately, idiopathic seizures can usually be controlled with prescription medications from your vet and your dog should be able to resume his normal activities.
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