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As pet parents, it can be worrying to see your dog or cat acting out of sorts. One common concern is fever, a sign that your pet’s body may be fighting off an illness or infection. Knowing how to spot a fever and what to do next can make all the difference in helping your furry friend feel better.
⚠️ What to Watch For
Fever in dogs and cats is often subtle, making it easy to miss unless you know what to look for. The normal body temperature for dogs ranges from 101 to 102.5°F (38.3 to 39.2°C), and for cats, it’s 100.5 to 102.5°F (38.1 to 39.2°C). A fever occurs when their temperature rises above these ranges.
Signs your pet may have a fever include:
- Lethargy or low energy levels
- Warm ears or paws
- Shivering or trembling
- Loss of appetite
- Dehydration (e.g., dry gums, reduced water intake)
- Nasal discharge
Keep in mind that some of these symptoms overlap with other conditions. A thermometer is the most reliable way to confirm if your pet has a fever.
🔍 Possible Causes
Fever in dogs and cats can result from a variety of underlying issues. Common causes include:
- Bacterial, viral, or fungal infections
- Inflammatory conditions, such as pancreatitis or arthritis
- Heatstroke, especially during warm weather
- Side effects of certain medications
- Immune system disorders
- Abscesses from wounds or bites
In rare cases, fever may be linked to more serious conditions like cancer or autoimmune diseases. If your pet’s fever persists or they’re showing other concerning symptoms, it’s best to consult a vet promptly.
✅ What You Can Do at Home
If you suspect your dog or cat has a fever, here’s what you can do to provide immediate care:
- Take their temperature using a digital rectal thermometer. Lubricate the thermometer with petroleum jelly and insert it gently into their rectum about 1 inch (for cats) or 2 inches (for dogs).
- Encourage hydration by offering fresh, cool water. Dehydration can worsen fever symptoms.
- Keep them comfortable in a quiet, cool space. Use a fan or damp cloth to gently cool their body, avoiding sudden temperature changes.
- Monitor their symptoms closely, including their appetite, energy levels, and any signs of discomfort.
Never give human medications like acetaminophen (Tylenol) or ibuprofen to your pet, as these can be toxic. If your pet’s fever is mild and they seem otherwise well, supportive care at home may be enough. However, if their fever exceeds 103°F (39.4°C) or they appear very unwell, it’s time to involve a vet.
💡 When to Call a Vet
Some situations require immediate veterinary attention. Call your vet or schedule a consultation if:
- Your pet’s fever rises above 104°F (40°C)
- The fever lasts longer than 24 hours
- They show severe symptoms, such as difficulty breathing, seizures, or collapse
- They’re a young puppy, kitten, senior pet, or have an underlying health condition
A vet will perform a thorough examination and may recommend diagnostic tests, such as bloodwork or imaging, to identify the cause of the fever. Treatment will depend on the underlying issue, ranging from antibiotics for infections to other targeted therapies.
According to VCA Animal Hospitals, prompt veterinary care is crucial when a fever is accompanied by serious symptoms (source).
FAQs
Q: How do I know if my pet’s fever is serious?
A: A fever above 104°F (40°C) or lasting more than 24 hours should be considered serious. Additionally, if your pet is lethargic, refusing food or water, or showing other severe symptoms, consult a vet immediately.
Q: Can I use a human thermometer for my dog or cat?
A: Yes, a digital human thermometer can be used rectally, but ensure it’s cleaned thoroughly before and after use. Never attempt to take your pet’s temperature orally.
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