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My 13-year-old dog is having frequent seizures. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Female | spayed | 12 years and 6 months old | 13 lbs

Were very concerned. Our 13 year old Jack Russel Terrier mix is having seizures every 5 minutes or so. They started yesterday, and have been getting progressively more frequent. She falls down and shakes, and then looks around very confused. She has been in the house as usual, where its air conditioned. She seems to be eating and drinking normally, and in between seizures, she attempts to act normal, play with her toys, and beg for food as usual. Any idea what is wrong with her?

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1 Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on July 28th, 2017

Poor Jackie! Unfortunately in an older dog who has no history of epilepsy, seizures usually mean something serious is going on. They can be caused by a primary brain lesion such as a tumour or they can be caused by the effects of toxin build up from organ failure, most often liver. They can be caused by other reasons such as high temperature or poisoning but the previous reasons are more likely. You need to get Jackie to a vet as seizures can damge the brain badly. The vet can examine her for clues as to a cause. Bloods can be useful to ascertain if it is organ failure. With a brain tumour clinical signs such as neurological signs can point to it, but mri tends to be the only full proof way to diagnose it. The vet will be able to administer meds to stop the seizuring then can decide the best treatment for her depending on the underlying cause. I will warn you that it is not going to be a case of curing her, but tryong to make her comfortable and manage symptoms. It is possible that her condition will be beyonf help and you may have to make the decision to put her to sleep. Good luck and give Jackie a cuddle from me.

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