Detecting Fever in Dogs: Signs and How to Respond

Nov 26, 2023

Did you know some emergency surgeries for dogs can run upwards of $5,000? Don't put your dog or your wallet at risk! Click the button below to get a free and instant quote on a comprehensive plan for your pup.

A-Z Animals may earn a small commission from using this service.

Detecting fever in dogs can be a vital skill for any pet owner or caregiver. Just like humans, dogs are susceptible to experiencing elevated body temperatures as a response to illness or infection. Recognizing the signs of a fever in our four-legged companions is crucial in ensuring their well-being and seeking appropriate veterinary care when necessary. In this article, we will delve into the various indicators that might suggest your beloved canine friend is running a fever and provide essential insights on how to respond effectively. By equipping yourself with this knowledge, you can play an active role in monitoring your dog’s health. You will learn when to take prompt action, ultimately contributing to their overall comfort and recovery.

©iStock.com/igorr1

It is essential for dog owners to understand the difference between a normal body temperature and a fever in their furry companions. Humans typically have a body temperature ranging from 97.6° to 99.6° Fahrenheit. Dogs naturally maintain a higher baseline temperature of around 101° to 102.5° F.

A dog’s slightly elevated body temperature is attributed to its faster metabolic rate compared to humans. They also have a fur coat which provides insulation and helps retain heat. This variance in normal temperatures emphasizes the importance of accurately detecting when a dog has developed a fever.

When a dog’s body temperature surpasses 103° F, it indicates the presence of fever. A canine with such an elevated internal heat may exhibit various signs (see chart below). These symptoms can serve as indicators for concerned pet owners.

You can manage moderate fevers in dogs at home by monitoring your pet closely and providing supportive care such as rest and hydration. If left unattended or improperly treated, high-grade fevers above 106°F can lead to severe complications. Fevers over 106° can pose serious risks to the animal’s health and even become life-threatening.

©iStock.com/brunorbs

The short answer is no. It can be tricky to pick up if a dog has a fever since their body temperature can rise if they are anxious or excited, and also vary throughout the day. To get an idea of what is considered normal for your dog, take their temperature at different points each day for a few days. There is a common misconception that if the nose is cold and wet, the temperature is fine, or if it’s hot and dry, it could indicate a fever. However, this is not an accurate way to measure. For best results, use a rectal thermometer.

©iStock.com/damedeeso

Taking your dog’s temperature is an important aspect of monitoring their health. Especially if you suspect they may have a fever. To ensure accurate results and minimize discomfort for your furry friend, use a digital thermometer specifically designed for pets.

Before beginning the process, make sure to coat the tip of the thermometer with either a water-soluble or petroleum lubricant. This will help facilitate easy insertion into your dog’s rectum and prevent any potential irritation. Rectal temperature measurement provides the most reliable reading in dogs.

Gently lift your dog’s tail and locate its anus. With caution and care, insert the thermometer approximately 1 inch into their rectum. It might be helpful to have another person gently hold onto your dog’s hind legs during this process to keep them from sitting or moving abruptly.

Once inserted, allow a few moments for the digital thermometer to accurately register your dog’s body temperature. Remain calm and reassure your pet throughout this process, as they may feel slightly uncomfortable or anxious during this examination.

After obtaining the reading, carefully remove the thermometer from the rectum while ensuring not to cause any harm or discomfort. Take note of the recorded temperature on either paper or electronically for future reference.

Remember that normal canine body temperature ranges between 101°F and 102.5°F. If you notice any significant deviations from these standard values or observe other concerning symptoms, see your vet.

©Faizal Ramli/Shutterstock.com

Ear thermometers are an excellent alternative. They are helpful for dog owners who prefer a less invasive method of taking their furry friend’s temperature. These innovative devices operate by measuring the infrared heat waves emitted from the area around the eardrum. This ensures a reliable reading without causing any discomfort to your pet. To obtain an accurate measurement, it is essential to gently place the thermometer deep into the horizontal ear canal.

Ear thermometers are significantly more expensive than traditional options, which often prevents pet owners from using them. Do not try to save money by purchasing a glass thermometer. This could pose potential risks and harm to your beloved companion. Opting for a specifically designed ear thermometer guarantees both accuracy and safety during temperature measurements.

©megaflopp/Shutterstock.com

When it comes to identifying the causes of fever in dogs, there is a wide range of illnesses and conditions that could be responsible. One common culprit is an infection, which can be bacterial, fungal, or viral in nature. In particular, ear infections cause fevers in dogs, as well as infected bites, scratches, or cuts that may have occurred during outdoor activities.

Another source of fever in dogs can be traced back to dental health issues. A tooth infection or abscess has the potential to trigger an increase in body temperature. Additionally, urinary tract infections are not uncommon among our furry friends and can lead to fevers as well.

It’s essential for dog owners to remain vigilant about their pets’ surroundings and what they consume. Dogs have a tendency to explore their environment with their mouths, putting them at risk of ingesting poisonous materials such as toxic plants or human medications. Certain human foods are also highly toxic for dogs and can induce elevated temperatures when consumed.

In some cases where no clear cause can be identified immediately, veterinarians refer to this condition as a “fever of unknown origin” (FUO). This means that the underlying reason behind the dog’s fever remains elusive even after thorough examination and testing. Such instances might indicate more complex issues related to problems within the bone marrow function, immune system disorders, or even cancerous growths.

©savitskaya iryna/Shutterstock.com

If your canine companion has a fever of 106° F or higher, it is crucial to act swiftly and take them to an emergency vet clinic. High fevers can be indicative of a serious underlying condition that requires immediate medical attention. However, if the temperature hovers around 103° F or more, there are steps you can take at home to help alleviate their discomfort.

One effective technique is to reduce your dog’s body heat by placing a damp towel on their ears and paws while running a fan nearby. This combination helps dissipate excess heat from their body and provides relief from the fever. It is important to note that this method should only be employed temporarily until the temperature drops below 103° F.

While monitoring your dog’s progress closely, make sure they have access to fresh water and encourage them gently to drink. Hydration plays a vital role in combating fevers as it aids in regulating body temperature and prevents dehydration.

Never administer any human medications like acetaminophen or ibuprofen without veterinary guidance. These over-the-counter drugs may seem harmless for humans but can prove toxic and dangerous for our furry friends.

Additionally, keep an eye out for any other accompanying symptoms, such as trembling, heavy breathing, or vomiting. These signs could indicate further complications requiring professional assessment by a veterinarian. By promptly seeking expert advice when observing these symptoms alongside the fever, you ensure comprehensive care for your beloved pup.

Disclaimer: The advice provided in this article is informational only and does not constitute medical advice. Always follow your veterinarian’s advice regarding your pets.

How about the fastest dogs, the largest dogs and those that are -- quite frankly -- just the kindest dogs on the planet? Each day, AZ Animals sends out lists just like this to our thousands of email subscribers. And the best part? It's FREE. Join today by entering your email below.

Dogs are our best friends but which breed is your perfect match?

If you have kids or existing dogs select:

Should they be Hypoallergenic?

How much energy should they have?

Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.