PET42 guide
Hypothermia in dogs: symptoms, first aid and danger signs
Wetness, wind and cold water can lower a dog's temperature dangerously. Know the warning signs and learn how to provide safe first aid.

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A wet dog, icy wind or an accident in cold water can lower body temperature dangerously. Advanced hypothermia does not always involve strong shivering.
Who is particularly at risk?
Puppies, seniors, small and very lean dogs lose heat more quickly. Short-haired animals, sick dogs and dogs that can barely move after an injury are also at higher risk. Wetness and wind draw away additional heat. A dog that falls through lake ice in winter or lies motionless outside for a long time needs immediate help.
Possible signs
Initially, your dog may shiver, become restless and seek warmth. As hypothermia progresses, the following signs can occur:
- Slow, stiff movements
- Tiredness and listlessness
- Confusion
- Shallow or slowed breathing
- A weak, slow pulse
- Cold ears, paws and skin
- Collapse or unconsciousness
If a severely chilled dog stops shivering, that does not reliably indicate improvement. Severely hypothermic animals may no longer be able to shiver adequately.
Safe first aid
Bring your dog into a dry room sheltered from the wind. Remove wet blankets or clothing and dry your dog gently. Wrap it in dry blankets. Lukewarm hot-water bottles wrapped in towels can be placed beside the body. The warmth must not be hot or applied directly to the skin.
Call a veterinary clinic at the same time. Warm your dog slowly and set off as instructed. Do not rub cold body parts vigorously or use a hot bath, a hairdryer on high heat or a direct heat source. With possible frostbite, heavy rubbing and rapid heating can damage additional tissue.
After consulting a vet, an alert dog may have small amounts of water. Do not put anything in the mouth of a drowsy or unconscious dog because it may aspirate it.
Hypothermia after surgery or illness
Body temperature can also drop after anaesthesia, with shock, blood loss or serious illness. A dog that shivers heavily, feels unusually cold or responds poorly at home after a procedure should not simply be covered and watched. Call the treating practice or emergency vet.
Prevention
Adjust walk duration and pace to the weather and your dog. Bring a dry towel, a blanket and, for sensitive dogs, a suitable coat on long trips. Avoid unsafe ice. Do not leave a dog alone in a car in winter, as the interior can become very cold.
Note: confusion, shallow breathing, severe loss of strength or collapse after cold exposure are a veterinary emergency.
Sources
- Reference: MSD Veterinary Manual: What to Do in a Dog or Cat Emergency.
- Reference: Cornell University College of Veterinary Medicine: Winter safety tips
Advice tailored to your dog
Review your dog’s individual diet
Take the independent PET42 food check now: stable body condition supports cold tolerance. We assess whether energy intake and daily amounts match actual needs.
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