Why Does a New Puppy Shiver?

Your new puppy shivers for many of the same reasons that humans do. He may be cold--shivering is the body's way of warming itself. Or, your puppy may be suffering from nervousness or a fever. Less commonly, your new puppy's shivering or trembling may be a symptom of a more serious illness or disease, such as anemia or hypothyroidism.

  1. Cold

    • Puppies are susceptible to cold. A newborn puppy depends on her mother to keep her warm because she cannot regulate her body temperatures until she is more than 3 weeks old. Puppies need a draft-free room where the temperature is between 70 and 80 degrees Fahrenheit. A carrier lined with towels or blankets can also provide warmth.

    Nervousness

    • Some puppies tremble because they are frightened by new people or circumstances. Socializing your puppy and getting him accustomed to new situations gradually can help allay nervous shivering.

    Breed

    • Some breeds, especially smaller ones, are more high-strung, and those puppies will tend to tremble more. There's little you can do to prevent that type of shivering and generally it is not harmful to your puppy. In addition, certain breeds, such as Chihuahuas and Italian greyhounds, cannot withstand the cold as well as heavy-coated breeds like huskies or Samoyeds. These puppies may need a dog sweater or other cold-weather wear.

    Illness

    • Several illnesses can cause your puppy to tremble. They include lupus (an immune system problem), hypothyroidism (underactive thyroid), calcium deficiency, fever, and epilepsy. Neurological problems can also cause shivering. A vet will perform tests to diagnose these illnesses.

    Hypoglycemia

    • Hypoglycemia, or low blood sugar, is a concern for toy breeds. At first, your puppy will appear listless, then begin to shiver or tremble. As the condition progresses, the puppy can become comatose. The condition can be fatal if not treated promptly. Treatment includes administering supplements such as Nutri-Cal and keeping the puppy warm.

    Warning

    • Contact your veterinarian if your puppy's shivering is persistent or severe and if she seems to be shivering for no apparent reason.