How to check a dog's temperature?

When your dog is lethargic, refuses food, or feels unusually warm to the touch, one of the first things to check is their temperature. It’s a simple yet crucial step in understanding their health—whether they’re a playful puppy or a senior dog napping by the fire.

A dog’s normal temperature runs a bit higher than ours, usually between 99.5 and 102.5 degrees Fahrenheit. Knowing how to check it properly isn’t just about staying on top of their health—it’s also part of being a responsible owner, especially in places where local laws might require keeping records of your pet’s wellness, like some counties in California or parts of the UK. Let’s break down the steps without overcomplicating things.

First, gather what you need: a digital rectal thermometer (the most accurate for dogs) or an ear thermometer, some petroleum jelly, and treats to reward them afterward. Start by calming your dog—maybe a gentle pat or their favorite toy. If using a rectal thermometer, apply a thin layer of jelly to the tip. Lift their tail gently, then insert the thermometer about half an inch into the rectum. Hold it in place for about 60 seconds until it beeps. For ear thermometers, make sure the ear is clean, then place the tip deep enough to seal the ear canal—follow the device’s instructions, as timing can vary.

Always handle your dog with care during this process. If they seem anxious or resist, take a break and try again later with a helper. Never force the thermometer, as that could hurt them or make them fear the process next time. Afterward, clean the thermometer with soap and water (or alcohol, if it’s not electronic) and give your dog lots of praise and a treat. This positive reinforcement can make future temperature checks easier.

Keep in mind that a temperature above 103°F might mean a fever, while below 99°F could be a sign of hypothermia. In either case, contact your vet right away. Some areas have strict guidelines about pet health—for example, in Germany, failing to seek veterinary care for a sick animal can result in fines. Staying on top of your dog’s temperature is more than a health habit; it’s part of following local regulations and ensuring their well-being.

By making temperature checks a calm, routine part of your care, you’ll be better prepared to spot issues early. Whether you’re using a rectal or ear thermometer, consistency and gentleness are key. And remember, when in doubt, your vet is the best resource to guide you—after all, keeping your dog healthy keeps both of you happy.