Taking your Dog’s Temperature

You know your dog better than anyone. So if he’s not looking himself, you may want to check his temperature, as this is one of the first questions your vet will ask.

To do this, you'll have to buy a rectal thermometer just for your dog. Aural thermometers (ear thermometers) aren't as accurate because of the shape of a dog's ear canal. It takes some skill and practice to properly position this type of thermometer in a dog's ear.

As well as buying a rectal thermometer, you'll also need some Vaseline-type lubricating jelly.

Before you get started, it's helpful to have someone else hold your dog's head and scratch his neck or ears rather vigorously to distract him from the other end of his body. Shake down the rectal thermometer to 96° F or below. Dip the end of the thermometer in the lubricating jelly, lift the tail and gently twirl the thermometer into the rectum, at least an inch into his body. To keep him from scooting away, hold him gently under the stomach and continue to have someone scratch his neck to distract him. Continue to praise him with a calm, upbeat voice. It will take about 2-3 minutes for an accurate reading. A high-tech digital thermometer will take even less time.

When you remove the thermometer, wipe the bulb end gently by running it through a paper towel. Try to avoid touching it with your fingers as this will influence the temperature.

The normal temperature for a dog is anywhere from 99.5° F degrees to 102.8° F. Anything above 104° F is a fever; anything below 99° is also a sign of illness. While a fever can sometimes indicate a viral or bacterial infection or a reaction to a medication, it may just be a sign that your dog is feeling off and needs to take things easy.

If the fever persists for more than a day of if it's higher than 104° F, you should seek veterinary care immediately.