Signs of Dehydration in Dogs and What to Do

Dogs can't tell you when they're thirsty, so dehydration often sneaks up on owners. Catching it early is the difference between a quick fix and a vet visit.

The two fastest checks are the gums and the skin. Press your dog's gums — if the color takes more than a second to return, that's a red flag. Gently pinch the skin between the shoulder blades; if it stays tented instead of snapping back, your dog is dehydrated. Sunken eyes and unusual tiredness are later signs.

Mild dehydration usually responds to fresh water and rest. If your dog won't drink, try ice cubes, low-sodium broth, or a pet water fountain — moving water is more tempting to many dogs. Severe dehydration needs a vet, especially if there's vomiting or diarrhea on top.

Prevention is easiest: always leave clean water out, and bring water on walks and car rides in hot weather.

People ask

How much water should a dog drink a day? Roughly one ounce per pound of body weight, more with exercise or heat.

Can I use Pedialyte for my dog? Only with vet guidance — human electrolyte drinks can be unsafe in the wrong amounts.

Why is my dog suddenly drinking more? Increased thirst can signal kidney issues or diabetes, so it's worth a vet check.