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Question:

Why is my dog smacking his lips and muzzle quivering?

I'm really worried about my fur baby and hoping to get some advice from fellow pet lovers. Over the past couple of days, I’ve noticed my dog, Max, keeps smacking his lips and his muzzle has this odd quiver to it. I can't tell if he's just doing it unconsciously or if something is actually wrong. He’s always been the happiest boy, but lately, he's seemed a bit off and less excited about his daily walks or treats, which is super unusual for him. I’ve checked his mouth for any injuries or issues with his teeth but didn’t find anything, and he's still eating okay. Has anyone experienced something similar with their pup? I’m on the verge of calling the vet, but I wanted to reach out here first to see if anyone might have an idea about what's going on. Thanks in advance for any suggestions!

Answer:

Hi there! It sounds like you've noticed some unusual behavior from your furry friend, and I'm here to help. When dogs smack their lips and have a quivering muzzle, several things could be going on. Often, this might just be a sign that your dog is a bit nauseous or has something stuck in their teeth, which can cause discomfort.



It could also be related to stress or anxiety—similar to how humans might bite their nails. If your dog is licking their lips frequently, keep an eye out for additional signs such as drooling, panting, or restlessness, which can indicate nausea or an upset stomach. Offering some plain, unsalted boiled chicken and rice may help settle their tummy if that's the case.



However, if the behavior continues, it could point to dental issues, seizures, or even something as simple as a foreign object caught in the mouth. Watch for other concerning signs like excessive drooling, loss of appetite, or any changes in behavior.



If this behavior is persistent or if you're noticing other symptoms, I recommend setting up a video consult with one of our vets on Dial A Vet. We can take a closer look at your dog's specific situation and help determine the next steps to get them feeling better.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 23, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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