Dogs can get fevers just like humans, but unlike us, they can’t say when something’s wrong. According to veterinary studies, fever in dogs is often linked to infections, immune disorders, or inflammation, and common signs include shivering, lethargy, warm ears, loss of appetite, and glassy eyes. Since these symptoms can point to an underlying illness, it’s important to act fast. This guide explains how to check your dog’s temperature, what warning signs to watch for, and when studies suggest it’s time to consult your vet for a proper diagnosis and treatment.
How to check your dog’s temperature
The most reliable way to know if your dog has a fever is to take their temperature using a pet-safe digital rectal thermometer. Human thermometers may not provide accurate readings for dogs. Steps to follow:

• Apply a lubricant like petroleum jelly to the thermometer tip.


• Gently insert it about an inch into your dog’s rectum while keeping them calm and still.


• Wait for the thermometer to beep before removing it.

A normal
temperature range for dogs is 101 to 102.5°F (38.3 to 39.2°C). Anything above this may indicate a fever. A temperature of 104°F (40°C) or higher is cause for urgent veterinary attention.
5 Common symptoms of dog fever every pet owner should know
Warm, dry nose and ears
One of the most common myths is that a warm nose always means a dog has a fever. While not a definitive sign on its own, a dry nose and noticeably warm ears can sometimes be an early indicator, especially when paired with other symptoms. However, factors like sleep, room temperature, or dry indoor air can also cause a warm, dry nose. So it’s best not to rely solely on this sign.
Shivering or panting
If your dog is
shivering or panting excessively without obvious reasons such as cold weather or exercise, it may signal a fever.

• Shivering could mean your dog is cold due to internal temperature changes.


• Panting is often the body’s way to cool down, since dogs can’t sweat like humans.

If either
symptom appears alongside others on this list, consult your vet promptly.
Lethargy or unusual tiredness
Lethargy in dogs can be caused by many things, but when your usually energetic pet becomes suddenly listless or inactive, it’s a red flag.

If your dog is unusually sleepy, disinterested in play or walks, and lacks normal energy, and especially if these symptoms coincide with others like loss of appetite or panting, it may be due to a fever or underlying illness.
Glassy or bloodshot eyes
A dog with a fever may have glassy, dull, or red eyes. Their eyes may look watery, and they may appear distant or less responsive. This symptom, similar to how humans look when feverish, isn’t always linked to other health issues, so it can be a helpful clue that your dog’s immune system is under stress.
Loss of appetite
A sudden disinterest in food, especially if your dog is usually a good eater, may indicate they are unwell. While appetite loss can occur for several reasons, when it’s accompanied by lethargy, shivering, or glassy eyes, it’s time to check their temperature. Always make sure your dog stays hydrated. If they refuse water, visit a vet immediately, as dehydration can be dangerous, especially if fever is present.
When to see the vet for your dog’s fever
If your dog’s temperature exceeds 102.5°F (39.2°C) and stays elevated for more than 24 hours, contact your vet.

Seek immediate veterinary attention if:

• The fever is above 104°F (40°C)


• Your dog shows signs of dehydration


• Symptoms worsen or multiply over time


• They appear extremely lethargic or unresponsive

Even if the fever drops after a day, it’s wise to monitor your dog closely for lingering symptoms. Fevers are usually a sign of an underlying condition, such as infection, inflammation, or an autoimmune issue. Caring for a dog means being alert to the subtle ways they show discomfort or illness. While a fever in itself is not a diagnosis, it is a clear signal that something may be wrong.
Knowing how to check your dog’s temperature and recognise key signs can help you act quickly and ensure they get the care they need. If you’re ever in doubt, trust your instincts and speak to your vet; it’s always better to be cautious when it comes to your pet’s health.
Also Read:
8 signs something is wrong with your dog’s health that you shouldn’t ignore