Signs & Symptoms of Dog Dehydration

Dehydration is a medical emergency that requires immediate attention. "The First Aid Companion for Dogs and Cats" warns that if the ratio of water to weight in a dog drops below five percent, the dog will begin exhibiting symptoms of dehydration. This occurs if the dog does not have access to water, is left outside or in a vehicle in hot weather, is vomiting or has diarrhea. Dogs with liver or kidney disease may also be prone to dehydration.

  1. Skin Elasticity

    • A dehydrated dog's skin has less fluid than is typical, which reduces the skin's elasticity. If you suspect that a dog is dehydrated, checking its skin is a good indicator. When you lift the skin on the dog's back, on its shoulders or at the base of its neck, the skin should snap back into place. If the skin takes a while to settle back into place, or if it tents up without returning to normal, the dog is dehydrated. PetEducation.com warns that if the dog's skin doesn't return to its normal place and keeps a tent-like appearance, the dog is between 10 and 12 percent dehydrated and may begin showing signs of shock.

    Mucous Membranes

    • A dog's mucus membranes may also indicate signs of dehydration. Examine the dog's eyes and gums. If the gums appear dry or pale, there may be a problem. "The First Aid Companion for Dogs and Cats" suggests gently pressing a finger on the gum tissue above your dog's teeth. After a few seconds, the pressure of your finger will force blood from the capillaries beneath it. This leaves a white mark when you remove your finger. If the blood does not flow back and return the gums to their normal color within two seconds, the dog is dehydrated. This is one of the more serious signs of dehydration. It indicates that you should take your dog to a veterinarian immediately. Signs of dehydration are also apparent in a dog's eyes. If their appearance has changed and they appear sunken, the dog may be severely dehydrated and requires veterinary attention.

    Behavioral

    • A dehydrated dog may change its behavior. A dog that becomes lethargic or uninterested in its normal activities should be monitored and encouraged to drink water. If this behavior continues, or if the dog refuses to drink, seek veterinary help as soon as possible. Sudden weakness is another indication of dehydration.