Pet Health

My Dog Has A Fever: Causes And Treatment Options

Discover the causes and effective treatment options for your dog's fever. Keep your furry friend healthy with our friendly guide to recognizing and addressing symptoms!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A concerned dog owner checking their dog's temperature with a thermometer in a cozy home setting.

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As a dog owner, it’s natural to worry when your furry companion seems under the weather. If you’ve noticed signs like lethargy, warm ears, or a dry nose, you might be wondering if your dog has a fever — and what to do about it. Let’s explore the causes, symptoms, and treatment options to help you care for your pup.

⚠️ What to Watch For

Fever in dogs can be tricky to detect because they can’t tell us how they’re feeling. However, there are several signs that may indicate your dog has an elevated body temperature:

  • Lethargy or reduced energy levels
  • Warm ears or paws
  • Shivering or shaking
  • Lack of appetite
  • Dry or warm nose
  • Red eyes
  • Vomiting or diarrhea

A dog’s normal body temperature ranges from 101 to 102.5°F (38.3 to 39.2°C). Anything above 103°F (39.4°C) is considered a fever and warrants attention. If your dog’s temperature exceeds 106°F (41.1°C), this is a medical emergency and requires immediate veterinary care.

🔍 Possible Causes

There are several reasons why your dog might develop a fever. These range from minor issues to more serious underlying conditions. Here are some common causes:

  • Infections: Bacterial, viral, or fungal infections can cause fever. Common sites include the skin, ears, respiratory system, or urinary tract.
  • Ingestion of toxins: Substances like spoiled food, certain plants, or human medications can lead to fever and other symptoms.
  • Vaccination: Some dogs may experience a mild fever as a temporary side effect of vaccinations.
  • Autoimmune diseases: Conditions where the immune system attacks the body can result in fever.
  • Other illnesses: Fever can also be a symptom of more severe conditions like cancer or pancreatitis.

In some cases, the cause of a dog’s fever may remain unknown. This is referred to as a fever of unknown origin (FUO) and requires further investigation by a veterinarian.

✅ What You Can Do at Home

If you suspect your dog has a fever, there are a few steps you can take at home to help them feel more comfortable:

  • Take their temperature: Use a digital rectal thermometer designed for pets to confirm whether your dog has a fever. Avoid relying on touch alone, as it’s not always accurate.
  • Encourage hydration: Fever can cause dehydration, so ensure your dog has access to fresh water. You can also offer ice cubes if they’re reluctant to drink.
  • Cool them down: Gently place a cool, damp cloth on your dog’s paws, belly, or ears. Avoid using ice packs or very cold water, as this can cause shock.
  • Provide rest: Create a quiet, comfortable space where your dog can rest undisturbed.

It’s important not to give your dog human medications like acetaminophen (Tylenol) or ibuprofen, as these can be toxic to pets. Always consult your vet before administering any medication.

💡 When to Call a Vet

While mild fevers may resolve on their own, there are times when professional help is essential. Contact your veterinarian if:

  • Your dog’s temperature is 103°F (39.4°C) or higher
  • The fever lasts longer than 24–48 hours
  • Your dog is showing severe symptoms like vomiting, seizures, or difficulty breathing
  • You suspect your dog has ingested a toxin

In these cases, your vet may perform diagnostic tests to identify the cause of the fever and recommend appropriate treatment, such as antibiotics, fluids, or other medications.

If you’re unsure about your dog’s condition, it’s always better to err on the side of caution and seek professional advice. A quick consultation with a vet can provide clarity and peace of mind.

FAQs

Q: How can I safely check my dog’s temperature?
A: Use a digital rectal thermometer specifically designed for pets. Lubricate the tip with petroleum jelly, insert it gently into your dog’s rectum about an inch, and wait for the reading. If you’re uncomfortable doing this, consult your vet.

Q: Can I give my dog aspirin for a fever?
A: No, you should never give your dog aspirin or any human medication without veterinary approval. These can be toxic and may worsen your dog’s condition.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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