There are several signs that your dog may be dehydrated:

Dry mouth and nose

If your dog’s mouth and nose feel dry to the touch, this may be a sign that they are dehydrated.

Loss of appetite

Dehydration can cause a decrease in appetite, so if your dog is not eating as much as usual, it could be a sign of dehydration.

Lethargy

If your dog seems tired or sluggish, it could be a sign that they are dehydrated.

Sunken eyes

If your dog’s eyes look sunken or deep set, this may be a sign that they are dehydrated.

Dry or sticky gums

If your dog’s gums feel dry or sticky, or if they appear to be a pale or white color, this may be a sign of dehydration.

Decreased skin elasticity

If you gently pinch the skin on your dog’s back and it doesn’t return to its normal position quickly, this may be a sign of dehydration.

If you suspect that your dog is dehydrated, it’s important to take them to the veterinarian as soon as possible. Dehydration can be a serious issue and may require treatment with fluids.