Dogs’ tremors often worry owners, especially when they occur for no apparent reason. Dogs may shiver or even tremble in certain situations, but this is not serious. Violent or persistent shaking, however, may indicate health or behavioral problems. Why does my dog shake? How can I tell if my dog is shivering from the cold? We explain it all in this comprehensive guide.

1 – Your dog is cold

Just like us, dogs can shake from the cold. This enables them to regulate their temperature. Large and long-haired dogs are generally not very sensitive to the cold, except when temperatures are very low. Small dogs, especially those with short coats, are very sensitive to the cold and need to be protected in winter. The smaller they are and the closer they are to the ground, the more sensitive they are to cold and damp. If you have a Chihuahua, a Dwarf Pinsher, a Bulldog, a Mexican Naked Dog, a Dachshund, a Chinese Crested Dog or a small Greyhound, we recommend :

• Put on waterproof clothes for your dog. Wool sweaters are nice, but they quickly soak up water and risk making your dog even colder. Choose a down jacket or parka.
• Equip your dog with booties if it’s snowing or the ground is wet.
• Dry your companion after a walk. Pay particular attention to belly, armpits and paw pads.

Small dogs aren’t the only ones to get cold and tremble easily: the Boxer, Great Dane and Dalmatian are also dogs sensitive to the cold.

2 – Your dog is stressed

Stress can make your dog tremble. Sudden, loud noises can cause your pet to tremble. Violent thunderstorms, fireworks and firecrackers, for example, frighten most dogs. Moving house, bringing a new pet into the household or the arrival of a baby can also stress your companion. Reassure your dog by talking to him in a soft voice and cuddling him. Provide a calm, pleasant environment to reduce your dog’s anxiety. If the tremors persist, consult a veterinarian. He may prescribe magnesium treats, which are known to reduce stress and tremors.

3 – Your dog is excited

Some dogs tremble when they’re very excited, especially if they’re young or have a dynamic temperament. They may shiver while waiting for a treat or an outing, as they quiver with anticipation. This type of trembling is temporary and harmless to your dog’s health.

4 – Your dog is sick or injured

Dog tremors may be caused by a neurological disease or disorder. In this case, they are usually accompanied by other symptoms, such as intense fatigue, lack of appetite, unusual cleanliness, vomiting or diarrhea. Injured dogs may also tremble. Trembling may be generalized, or localized to an injured limb (your dog may keep his paw raised and trembling, for example).

5 – Your dog is intoxicated or poisoned

Dogs that have smelled or ingested a toxic substance may begin to shake, then convulse. Contact with processionary caterpillars, herbicides, rat poison or insecticides can cause severe tremors. If you suspect your dog has come into contact with a dangerous product, take him to the vet without delay.

6 – Your dog is old

Older dogs are prone to tremors. Like us, they lose muscle tone as they age. This leads to small tremors in everyday life, which become more pronounced when your pet is on the move. Make sure you take your senior dog to the vet regularly: mild tremors are normal, but strong tremors can indicate injury or illness.