7 Common Reasons Why Your Dog Might Be Shivering

Many owners of very small dog breeds such as the Chihuahua often notice regular bouts of shivering or trembling in their pets. While some small breeds are naturally prone to this behaviour, shivering in any dog warrants understanding as it can communicate their comfort or health status.

This article explores seven common reasons why your dog might be shivering, what it could mean, and when you should consider veterinary advice or environmental changes. Understanding these causes can help you provide better care and reassurance for your canine companion.

A breed-specific tendency

Certain breeds have a known tendency to shiver more frequently and in situations that might not affect other dogs. This is often seen in small breeds with thin coats or particular temperaments. For example, the Chihuahua and the hairless Chinese Crested are more prone to shivering due to their physiology.

Even for breeds prone to shivering, it's typically linked to an underlying cause such as temperature sensitivity or excitement, making it important to observe the context in every case.

Too cold: Shivering as a natural response

Shivering is a natural reflex for dogs when they are cold. This is especially true for small breeds, dogs with short or thin coats, and those with a lower body fat percentage. For instance, tiny breeds like the Chihuahua and hairless breeds such as the Chinese Crested require extra warmth during cooler weather.

Providing coats, warm bedding, and limiting exposure to cold conditions helps prevent unnecessary discomfort and potential hypothermia. Always ensure your dog has a cosy environment, especially during colder months.

Nervousness and anxiety

Many dogs, particularly smaller ones, may shiver when they feel nervous or anxious. This is due to an adrenaline release as part of their natural fight or flight response. Situations like meeting unfamiliar people, visits to the vet, or loud environments can trigger this reaction.

However, nervous shivering can also occur in larger dogs if they experience fear or anticipate negative experiences such as loud reprimands. Recognising anxiety triggers and creating calm environments or using behavioural training can help reduce stress-induced trembling.

Fearful reactions to stimuli

Shivering can be a clear sign of fear in dogs. Common triggers include fireworks, thunderstorms, loud noises, or encountering dominant or aggressive dogs. Fear-induced shivering is usually coupled with other anxiety behaviours like cowering, pacing, or hiding.

Appropriate management strategies, including safe spaces, desensitisation training, and in some cases, veterinary advice, can ease these fearful responses to improve your dog’s wellbeing.

Excitement and anticipation

Shivering while excited is common, especially in active or highly strung breeds such as working or sporting dogs. Dogs may tremble when awaiting playtime, walks, or competitions, driven by adrenaline and enthusiasm.

For example, dogs participating in sports like flyball often show signs of shivering before and after events due to anticipation. This type of shivering is generally harmless and temporary, related to emotional arousal.

Underlying health conditions

Shivering can sometimes indicate medical issues requiring prompt veterinary attention. Neurological disorders, blood sugar imbalances as seen in diabetic dogs, or conditions like white shaker syndrome — most common in West Highland White Terriers — can cause trembling or shaking.

Poisoning or exposure to toxins is another serious cause of shivering. Recognising sudden shivering along with other symptoms like vomiting, disorientation, or weakness requires immediate veterinary care.

Shock from injury or trauma

Physical shock from injuries or accidents causes shivering alongside other signs such as cold extremities, rapid pulse, dilated pupils, pale gums, and potential fainting or dizziness.

Shock is a medical emergency. If you suspect your dog is in shock, keep them calm and warm, avoid unnecessary movement, and seek urgent veterinary treatment immediately.

Promoting responsible pet ownership

Understanding the reasons behind your dog’s shivering helps you respond compassionately and responsibly. Always ensure your dog is protected from harsh weather, receive regular health checks, and manage stressors thoughtfully.

If acquiring a new dog, seek reputable breeders or consider rehoming through shelters to promote ethical and responsible ownership.

When should you consult a vet?

If your dog's shivering is sudden, persistent, or accompanied by other concerning signs like lethargy, vomiting, disorientation, or signs of pain, consult your vet as soon as possible. Early diagnosis can prevent serious complications and ensure proper treatment.

For non-urgent investigations, keeping a diary of when and where the shivering happens, plus accompanying behaviours, will help your vet make an informed diagnosis.

Conclusion

Shivering in dogs is caused by diverse reasons ranging from harmless breed traits and emotional states to serious health emergencies. By observing your dog carefully and responding with kindness and knowledge, you can ensure their comfort and safety.

Remember to provide warmth, reduce stresses, and seek veterinary advice when shivering accompanies illness or injury. Your attentive care will help your beloved dog feel safe and loved in all situations.