How Do I Know if My Cat Has a Fever

How Do I Know if My Cat Has a Fever?

As pet owners, it’s important to be able to recognize when our furry friends are not feeling well. One common indicator of illness in cats is a fever. Just like humans, cats can experience an increase in body temperature when they are fighting off an infection or dealing with an underlying health issue. But how do you know if your cat has a fever? Here are some signs to look out for:

1. Increased body temperature: A cat’s normal body temperature is between 99.5°F and 102.5°F. If you suspect your cat may have a fever, you can use a rectal thermometer to check their temperature. However, this is best done by a veterinarian to avoid injury.

2. Lethargy: Cats with a fever often become lethargic and show a lack of interest in their usual activities. They may sleep more than usual and have a decreased appetite.

3. Loss of appetite: Fever can cause cats to lose their appetite. If your cat is refusing to eat or only eating small amounts, it could be a sign of fever or another underlying health issue.

4. Shivering or trembling: Cats with a fever may shiver or tremble as their body tries to regulate its temperature. This can be a clear indication that something is wrong.

5. Increased heart rate: When a cat has a fever, their heart rate may be elevated. You can check your cat’s heart rate by placing your hand on their chest near the left elbow and counting the beats for 15 seconds, then multiply by 4.

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6. Warm or hot ears and paws: Fever often causes an increase in blood flow, which can result in warm or hot ears and paws in cats. Feel your cat’s ears and paws to see if they feel unusually warm.

7. Changes in behavior: Cats with a fever may display changes in behavior, such as being more irritable or withdrawn. They may also hide more than usual and avoid social interaction.


1. Can a cat’s fever go away on its own?
In some cases, a mild fever may resolve on its own as the cat’s immune system fights off the infection. However, it’s essential to monitor your cat’s condition and consult a veterinarian if the fever persists or worsens.

2. What causes a cat to have a fever?
Fever in cats can be caused by various factors, including infections, viruses, immune system disorders, and certain medications. It’s crucial to determine the underlying cause to provide appropriate treatment.

3. Should I give my cat medication for a fever?
Never give your cat human medication without consulting a veterinarian. Some human medications, such as acetaminophen, can be toxic to cats. A veterinarian will prescribe the appropriate medication if necessary.

4. How can I help my cat feel better while they have a fever?
Ensure your cat has a comfortable and quiet space to rest. Offer them plenty of fresh water and monitor their food intake. If your cat’s fever persists, consult a veterinarian for further guidance.

5. Can fever in cats be contagious to humans or other pets?
Most fever-causing illnesses in cats are not contagious to humans or other pets. However, it’s always a good idea to practice good hygiene when handling a sick cat and consult a veterinarian for guidance.

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6. How long does a cat’s fever usually last?
The duration of a cat’s fever depends on the underlying cause. Some fevers may resolve within a few days, while others may require more extended treatment. Consult a veterinarian for an accurate diagnosis and treatment plan.

7. When should I seek veterinary care for my cat’s fever?
If your cat’s fever persists for more than 24-48 hours, is accompanied by other concerning symptoms, or if you are unsure about your cat’s condition, it’s best to seek veterinary care. A professional can accurately diagnose the cause of the fever and provide appropriate treatment.