Why Is My Puppy Shivering? Causes & Vet Advice

Like humans, puppies (and adult dogs) shiver for many reasons. Most often, shivering is brief and harmless, typically caused by the pup feeling a little chilly.

However, shivering can sometimes signal illness, hereditary conditions, or distress. If your puppy is shivering frequently or without a clear cause, it is important to identify why and seek veterinary advice if needed.

This guide explores the common triggers of shivering in puppies to help you understand what might be affecting your furry friend and how to respond responsibly.

1. Feeling Too Cold

Puppies don't regulate their body temperature as effectively as adult dogs, making them more vulnerable to cold. When first stepping outside or moving from a warm home to a cooler environment, they can feel uncomfortably chilly and shiver to generate heat.

Small, lean, or short-haired breeds like the Italian greyhound and Chihuahua are especially sensitive to cold. Consider providing blankets or dog coats for warmth, especially at night when the heating is off.

2. Puppy Distress and Anxiety

Being separated from their mother and littermates is a major life change for puppies, often causing distress. Shivering accompanied by crying or trembling can be a sign they are feeling anxious or scared as they adjust to new surroundings.

This phase usually passes within days, but offering a secure, comfortable space and gentle companionship can help soothe your pup.

3. Hunger and Low Blood Sugar

A hungry puppy may feel colder because their body lacks the fuel to maintain warmth. This can cause shivering, particularly in delicate or finely-built pups. Ensure your puppy receives regular, nutritious meals tailored to their breed and size.

4. Dreaming During Sleep

During REM sleep, puppies dream just like humans. Twitching limbs, flickering eyes, and subtle shivering can be normal signs of dreaming and are nothing to worry about.

5. Fear and Nervousness

Puppies that are fearful or anxious may shiver as part of a stress response to unfamiliar sights, sounds, or situations. Highly sensitive breeds and individual dogs tend to show this reaction more.

Socialisation and positive exposure to new experiences gradually reduce fear-induced shivering over time.

6. Excitement and Anticipation

Shivering can also result from excitement, such as when a puppy eagerly anticipates playtime or a walk. Energetic and intelligent breeds like pointers may tremble when focused or alert too.

7. Hereditary Health Conditions

Some breeds are prone to inherited disorders causing tremors. For example, West Highland white terriers may develop white shaker syndrome.

If your puppy is from a breed known for such conditions and shows unexplained shivering, consult your vet for proper examination and testing.

8. Illness and Infections

Shivering can signal serious underlying health problems such as infections, pain, or neurological disorders. Parvovirus is one of the most dangerous infections affecting young puppies, often confirmed by symptoms including shivering.

To protect your puppy, keep them indoors and away from other dogs until fully vaccinated against core diseases. If your pup shows signs of illness, seek immediate veterinary care.

9. Pain or Discomfort

Physical pain from injury or illness can cause shivering. Watch for other symptoms like reluctance to move, whimpering, or behaviour changes and get a vet's assessment promptly.

10. Toxicity and Poisoning

Ingesting toxic substances such as chocolate, certain plants, or chemicals may cause shivering along with vomiting or seizures. Keep harmful items safely out of reach and contact your vet or emergency clinic if poisoning is suspected.

Conclusion

While shivering in puppies is often harmless and temporary, it can sometimes indicate a deeper health or emotional issue. Early detection and a caring response are vital for your pup’s wellbeing.

Always ensure your puppy has a warm, safe environment, a balanced diet, and plenty of gentle socialisation. When in doubt, don't hesitate to contact a veterinarian to rule out illnesses or inherited problems and get personalised care advice.

By understanding why your puppy may be shivering and acting responsibly, you help build a happy, healthy future for your new companion.