If your cat suddenly collapses, goes rigid, paddles their legs, or loses control of their bladder for a minute or two, you’re likely watching a seizure. It’s frightening to witness, but the immediate steps are simple: don’t restrain your cat, clear the area of anything they could hit, time the episode, and call your vet — most cats recover within minutes, but any first seizure needs veterinary follow-up.
What a Seizure Actually Looks Like in Cats
Seizures in cats don’t always look like the dramatic full-body convulsions people picture. Veterinary neurologists generally group them into two categories:
Generalized seizures involve the whole brain and body — your cat may fall to their side, go stiff, paddle all four legs, drool, vocalize, urinate or defecate, and lose consciousness. These typically last 30 seconds to two minutes.
Focal (partial) seizures are more subtle and easy to miss. They might look like a twitching ear or facial muscle, a brief blank stare with no response to your voice, sudden aggressive or fearful behavior, or repetitive chewing motions — sometimes called “fly-biting.” Focal seizures can sometimes progress into generalized ones.
Most seizures follow a three-phase pattern worth knowing:
- Pre-ictal (aura): Restlessness, hiding, clinginess, or unusual vocalization in the minutes beforehand — not every cat shows this, but many owners recognize it in hindsight.
- Ictal: The seizure itself.
- Post-ictal: Confusion, temporary blindness, wobbliness, or unusual hunger/thirst afterward, lasting anywhere from minutes to about 24 hours.
What Causes Seizures in Cats
Unlike dogs, where idiopathic (cause-unknown) epilepsy is relatively common, seizures in cats are more often a sign of an underlying problem that can actually be found — which is one reason vets take a cat’s first seizure seriously. Common causes cited by veterinary neurology references include:
- Toxin exposure — certain pesticides, human medications (including some antidepressants and ADHD medications), lilies, and permethrin-based dog flea products, which are highly toxic to cats
- Infectious or inflammatory disease — feline infectious peritonitis (FIP), toxoplasmosis, and other central nervous system infections
- Metabolic disease — liver disease (including portosystemic shunts, more common in young cats), low blood sugar, or kidney disease affecting electrolyte balance
- Structural brain disease — brain tumors (more common in cats over 8-9 years old), old trauma, or stroke-like events
- True idiopathic epilepsy — a diagnosis of exclusion, meaning every other cause has been ruled out first, more often seen in cats under 4 years old
Because the cause list skews toward things that are findable and often treatable, a vet workup after a first seizure isn’t just precautionary — it’s frequently how owners discover a manageable condition early.
What to Do During a Seizure
- Stay calm and don’t touch your cat’s mouth. Cats do not swallow their tongues during a seizure, and trying to hold the mouth open risks a serious bite for you and no benefit for them.
- Clear the immediate area. Move furniture, stairs, or anything sharp out of the way rather than trying to move your cat.
- Time it. Note the start time. Most seizures resolve within one to two minutes on their own.
- Dim the lights and reduce noise if it’s safe to do so — bright light and sound can occasionally prolong or worsen episodes.
- Call your vet or an emergency clinic once the seizure ends, even if your cat seems to recover quickly.
When It’s a True Emergency: Cluster Seizures and Status Epilepticus
Call an emergency vet immediately — don’t wait to see if it passes — if any of the following happen:
- The seizure lasts longer than five minutes
- Your cat has more than one seizure within a 24-hour period (cluster seizures)
- Your cat doesn’t fully regain consciousness between seizures
- Body temperature seems dangerously high (panting, extremely hot to the touch) after a prolonged episode
Seizures lasting more than five minutes, known as status epilepticus, can cause dangerous overheating and brain damage the longer they continue, and require immediate veterinary intervention — this is genuinely one of the few true 24/7 emergency situations in cat health.
What Your Vet Will Likely Do
For a first-time seizure, expect your vet to start with a physical and neurological exam, then bloodwork to check liver and kidney function, blood glucose, and electrolytes — since several of the most common and most treatable causes show up there. Depending on your cat’s age and the bloodwork results, they may recommend advanced imaging (MRI or CT) or referral to a veterinary neurologist, particularly for cats having recurrent seizures or those over age 8, where a brain tumor becomes a more realistic possibility.
If no underlying cause is found and seizures continue, anticonvulsant medication (commonly phenobarbital or levetiracetam in cats) can manage the condition effectively for most cats, often with a normal quality of life afterward.
When to See a Vet
Any seizure in a cat warrants a same-day or next-day vet call — this isn’t a “wait and see” symptom. Treat it as an immediate emergency, not just a “call soon” situation, if:
- The seizure lasts more than 5 minutes
- Your cat has repeat seizures within 24 hours
- Your cat doesn’t return to normal consciousness between episodes
- Your cat is a kitten, senior, or has a known health condition
A video of the episode — even 15-20 seconds on your phone — is one of the most useful things you can bring to the appointment. It helps your vet distinguish a true seizure from other episodes that can look similar, like fainting (syncope) or a vestibular event, which have different causes and workups.
The Practical Takeaway
A single brief seizure that resolves in under two minutes still needs a vet visit, just not necessarily an emergency-room dash — call your regular vet the same or next business day. A seizure lasting more than five minutes, or multiple seizures in a day, is a genuine emergency requiring immediate care. Either way, staying calm, keeping your cat safe from injury during the episode, and timing what you see gives your vet the information they need to figure out what’s actually going on — most of which turns out to be findable, and often treatable.