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Why does my dog's jaw chatter or shiver when he opens his mouth?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered

my dogs jaw constantly shivers like he is cold or something whenever he seems to open his mouth

1 Answer

Most Helpful Answer

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Answered By Daniela Jessen, DVM

Veterinarian

Published on January 7th, 2019

A chattering jaw can be a sign of few different things from something serious, such as a neurological condition, to a dental condition , or being cold or even a sign anxiety. There are different reasons why this behavior or symptom may be happening . The first thing to ruke out is cold room make sure he is nice and warm. If it still persist then the best thing would be to take him to the vet to examine him and rule in/out the medical causes and try diagnose it. If the dog is not doing the behavior all the time but in episodes it may be a good idea to video it so you can show the vet how it present.

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