Why Is My Dog Having Seizures
This page is educational reference material for preparing questions. A licensed veterinarian examines the animal, makes the diagnosis, and sets the treatment.
Dog seizure causes: epilepsy, toxin exposure, liver disease, and brain tumors. What to do during a seizure and when to rush to the vet.
Understanding This Symptom
The easiest catches are the early ones — a shift in energy, appetite, or posture noticed before anything dramatic happens. This resource covers the most common causes, warning signs that indicate an emergency, and what you can expect at the veterinarian.
When to Seek Emergency Care
If this symptom is accompanied by collapse, difficulty breathing, seizures, uncontrolled bleeding, or your dog is unable to stand, seek emergency veterinary care immediately.
Common Causes
Less Serious Causes
More Serious Causes
- Poisoning or toxic exposure
What to Watch For
Monitor your dog closely for any changes in behavior, appetite, or energy levels. Keep a written log of symptoms including when they started, how often they occur, and whether they are getting better or worse.
- Lethargy or reluctance to move or play
- Vomiting, diarrhea, or changes in stool
Home Care and First Steps
Veterinary Diagnosis
Your veterinarian will typically:
- Perform a thorough physical examination
Treatment Options
Prevention
Long-Term Management
Guidelines set the floor; observation of your individual animal sets the ceiling.
When to Get a Second Opinion
Related Symptom Guides
- Why Is My Dog Not Eating?
- Why Is My Dog Shaking?
- Why Is My Dog Limping?
- Why Is My Dog Vomiting?
- Why Is My Dog Coughing?
Should I go to the emergency vet?
Seek emergency care if this symptom is severe, worsening rapidly, accompanied by other serious symptoms (collapse, difficulty breathing, seizures), or if your dog appears to be in significant pain or distress.
How much will treatment cost?
Use vetted guidelines as the default and adjust where the animal in front of you contradicts the averages.
Can I treat this at home?
Start with the well-supported defaults, measure how they work, and tune from there.