A cat chewing a live cord is still part of the circuit, so the first move is not to grab the cat but to kill the power, inside 5 seconds. Switch off the breaker or pull the plug, then wait 10 seconds before you touch the cat. Then look inside the mouth: the burn sits at the corner of the lips, it gets worse over 3 to 7 days, and the lungs and heart need watching for 48 hours even if the cat is walking.
Cut the power before you touch anything
Hit the breaker, not the cat. If you cannot reach the panel, unplug the appliance end, or switch the socket off with a dry wooden spoon or a broom handle, standing on a dry floor in dry shoes. Keep 1 meter between your hand and the cat until the circuit is dead, because 220 to 240 volts at 50 Hz will run through you as easily as through the cat, and a wet floor carries it further. In a 110 to 120 volt house the shock is less likely to kill a person, which is exactly why people grab the cat and get bitten or burned. Wait 10 seconds after the switch, then check breathing.
Why a bare-handed grab is the worst option
Contact makes you part of the path, and a cat in tetany clamps down instead of letting go: the jaw muscles lock, so the animal cannot release the cord and cannot be pulled free by the collar. A dry cotton towel around the body is better than skin on skin, and rubber washing gloves are not rated for mains voltage, so do not treat them as insulation. If the cat is still attached and you cannot kill the power, use a dry wooden chair leg or broom handle to lift the cord away, then drop the tool before you touch fur.
The mouth burn at the lip corner
Look for a 1 to 3 mm gray or white hole at the commissure, the corner where the upper and lower lips meet; that spot touches the wire first. The tongue, hard palate and the inside of the cheeks can be burned too, and a cat that drools, paws at its mouth, or refuses food 6 hours later is telling you the burn is deeper than it looked. Tissue dies over 3 to 7 days, the eschar separates at 7 to 14 days, and a scar that crosses the lip corner can narrow the opening; that is why these burns get a recheck at 7 days and again at 14.
Electricity and the heart in the first 48 hours
Current crossing from mouth to front paws passes close to the heart, and the arrhythmias it triggers can appear minutes or 24 to 48 hours later, so a normal exam at hour 1 does not clear the cat. Expect an ECG, and often a second one the next morning; a cat with an abnormal rhythm stays in for monitoring. The same current that stops the heart can also cause seizures in the first 10 minutes, and a cat that was thrown by the shock may have a fractured jaw or a spinal injury from the fall rather than from the electricity.
Pulmonary edema at 12 to 48 hours
The lung is a second target: current injury to the capillary bed, plus stress and any aspiration, produces non-cardiogenic pulmonary edema that typically shows at 12 to 48 hours. Resting breathing rate is the cheapest monitor you own. A cat at rest should breathe 20 to 30 times a minute; 40 or more, open-mouth breathing, or foam at the nostrils means the lung is filling, and that cat needs oxygen and a chest film, not another night of watching. Most vets recheck the chest at 24 hours because early films can look clean.
The first 48 hours, step by step
| Time after the shock | Do this | Numbers to check | Go in if |
|---|---|---|---|
| 0 to 30 seconds | Kill the breaker, wait 10 seconds | 220 to 240 V off at the panel | you cannot cut the power |
| 2 minutes | Check breathing, pulse, gums | 20 to 30 breaths per minute | no breathing, blue gums |
| 30 minutes | Cool the lip with a damp cloth, do not rub | temperature 38.1 to 39.2 C | lip swelling, drooling |
| 2 hours | Vet exam, mouth and ECG | temperature 38.1 to 39.2 C | irregular heartbeat |
| 6 hours | Offer soft food, watch drooling | eats 50% of a normal meal | cannot swallow, drools |
| 24 hours | Second ECG, chest film | resting rate under 40 per minute | cough, fast shallow breathing |
| 48 hours | Final lung check, lip recheck | weight loss under 5% | fever above 39.5 C, no eating |
What the clinic does, and what it cannot fix
Treatment is supportive: oxygen, intravenous fluids at a rate set by weight, pain relief, and a soft or liquid diet while the mouth heals. Antibiotics are used when the burn is contaminated, not as a routine. Severe lip-corner burns sometimes need a feeding tube for 5 to 14 days, and a stricture that narrows the mouth may need surgery weeks later. There is no injection that reverses an electrical burn; the tissue decides over 2 weeks, and the vet's job is to keep the cat eating, hydrated and out of pain while that happens. The cord-bite timeline is covered in after a cord bite and in electric shock in cats; if the cat also chewed a plant or a battery, the toxicity tool is the faster route than guessing.
Making the house boring for a biter
A kitten under 6 months is the classic cord chewer, and the risk peaks in the 2 to 5 month teething window. Run cords through hard plastic conduit, or tack them along the baseboard every 30 cm so there is no loop to bite. Unplug chargers at the wall when not in use, keep 1 meter of slack out of reach behind furniture, and give the cat 2 to 3 legal chew targets so the cord is not the only option. Citrus or bitter spray needs reapplying every 3 to 5 days, and it stops working the week you forget. A cat that has already been shocked should be kept out of the room with the cable until the cable is covered.
Five steps for the next hour
- Breaker off, 10 seconds, then touch the cat; never grab a cat that is still on the wire.
- Check breathing and gums, and look inside the mouth with a flashlight for 10 seconds.
- Wrap the cat in a dry towel, keep it at 22 to 24 C, and do not let it walk far.
- Call the clinic, say the voltage and the minute it happened, and go in the same hour.
- Count resting breaths at 2, 6, 24 and 48 hours, and write the number down.
Terms mentioned in this article
Frequently asked
The cat is still biting the cord. Can I just pull it off?
No. A shocked cat goes into tetany and clamps its jaw, so pulling the collar or the body does not free it and puts you in the circuit. Kill the breaker, unplug the appliance, or switch the socket off with a dry wooden handle, then wait 10 seconds. Only after the circuit is dead should you touch the cat.
There is only a tiny hole at the corner of the mouth. Is that serious?
Yes. That 1 to 3 mm gray hole is the contact point, and electrical burns deepen for 3 to 7 days as tissue dies, with the eschar separating at 7 to 14 days. A scar across the lip corner can narrow the mouth and stop the cat eating. These burns need a vet exam, pain relief, and rechecks at 7 and 14 days.
Why does the vet want to keep a cat 48 hours after a shock?
Because the two dangerous effects are delayed. Arrhythmias can appear 24 to 48 hours after the current crosses the chest, and non-cardiogenic pulmonary edema usually shows at 12 to 48 hours. A normal exam at hour 1 does not rule either out, which is why an ECG, a chest film and resting breathing counts are repeated.