Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Dog Drool in the Car? 4 Reasons for This Behavior

Share

maltese dog riding in the car

While most dogs look forward to riding in the car, some get sick when they do, to the point of drooling and vomiting. However, motion sickness isn’t the only reason dogs drool in the car. Excessive drooling is called ptyalism, and there are a few reasons that it could be happening.

If you’re concerned about your dog drooling in the car and think something might be wrong, you should take them to the vet. However, we will give you a few of the most common reasons for dogs drooling in the car in the article below.

divider single dog paw oct 2024

The 4 Reasons That Dogs Drool In The Car

1. Motion Sickness

If your dog is whining, vomiting, licking their lips, and drooling excessively, they may have motion or car sickness. Regardless of age or breed, any canine can suffer from motion sickness when in the car, although it is more common in puppies as their inner ears are not fully developed. The inner ear is involved in balance and any disturbances can lead to the nausea seen in motion sickness.

Taking your dog on frequent, shorter trips can help them get used to riding in the car. There are also medications that your vet can give your pet for motion sickness.


2. Excitement /Anxiety

It is also possible that your dog is simply excited to ride with you in the car. They could also be suffering from anxiety because of negative associations with car rides like always being taken to the vet or a bad experience in the car. They could also be anxious from lack of exposure, making a car ride a new and scary experience.

Intense emotions can cause your dog to drool excessively. For example, if your dog is afraid of riding in a car, it can cause anxiety and excessive drooling.

If your dog is overly excited or anxious during car rides we recommend some training using desensitization and counter-conditioning techniques. Desensitization refers to exposing your dog to the car at a level that does not trigger a response. For some dogs, this might mean just being around the car without going inside.

As your dog becomes more relaxed, you can gradually increase their exposure by letting them in the car, turning the car on, and going for short rides however, this process should take weeks and is not done all at once. Counter-conditioning involves creating new positive associations with something that was once scary. For example, rewarding your dog with treats while they are being desensitized.

Calming products like supplements or pheromone collars can help ease minor anxiety, however, if your dog seems more severely anxious during car rides please speak to your vet about medication options. The stress of car rides can also trigger signs of motion sickness and vomiting.


3. Heatstroke

If it’s a bit too hot for them it’s possible that your dog has heat stress or even heatstroke. Remember, your dog wears a fur coat all year, and they can’t sweat like you do. Just because it’s cold or comfortable to you doesn’t mean it is to your furry friend. Never leave your dog unattended in the car, as the temperature can increase by more than 10 degrees in 10 minutes, putting them at risk even if you’re just doing a quick shop.

If your dog is drooling excessively and seems overheated, get them to a cooler location immediately and contact your vet. If they have other worrying signs like heavy breathing, weakness, collapse, vomiting, or diarrhea, head to the emergency clinic right away.

Jack Russell Terrier in lounger dog bed for travel inside the car
Image Credit By: FedBul, Shutterstock

4. Other Possible Causes

Although it’s unpleasant, drooling is a normal bodily function. However, excessive drooling can indicate dental disease or other oral problems. If that is the case with your pup, you’ll notice them having problems eating and drooling even if they aren’t in the car.

Dental disease is extremely painful, and rotten teeth need to be extracted before they cause even more problems. Injuries, tumors, and foreign objects in the mouth can also cause excessive drooling.

You must ensure your dog hasn’t contracted rabies if they’re drooling excessively. There are also some toxins and underlying diseases that can cause your dog to drool excessively in and out of the car. Abdominal pain or gastrointestinal disease can cause drooling. You should contact your vet for a full examination if you think your dog is drooling due to an issue with their teeth, mouth, or other underlying problem.

divider dog paws 2 oct 2024

How to Prevent Motion Sickness in Your Dog

Now that you know the most common reasons that your dog is drooling excessively in your car, we’ll give you a few tips on how to prevent motion sickness in your dog. Since this is more common in puppies than adult dogs, it’s possible that your puppy will outgrow it.

  • Roll the windows down to let in fresh air.
  • Keep the car cool by running the air conditioner.
  • Limit how much food you give your dog a few hours before a trip.
  • Talk to your vet about medications that prevent motion sickness.
  • About 20 minutes before you leave, take your dog for a walk to relieve the stress that causes anxiety and possible motion sickness.

If these tips don’t work for you and your canine pal, it’s best to take the dog to your vet to see if there’s an underlying cause for the motion sickness. Your vet can treat any underlying issues the dog might have that cause motion sickness when riding.

Always consult a veterinarian to find the best treatment for your pup.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your dog — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog paws 3 oct 2024

Conclusion

There are a few reasons your dog drools excessively in the car. Whether it’s because the dog has motion sickness or is just excited to be in the car going for a ride, you need to be sure that the drooling is nothing serious.

When your dog is drooling excessively, you must check for every possible reason to ensure they’re healthy. Maintaining regular vet appointments to ensure they’re not injured or ill and gradually getting your dog accustomed to riding in a car will help.

Your vet can prescribe medications if the drooling is related to motion sickness, and they can provide advice and medicine if the issue is related to anxiety.


Featured Image Credit: Monika Wisniewska, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

A Major Breakthrough in Canine Anxiety Care: FDA Approves First Dual-Purpose Medication

Why This FDA Approval Is Such Important News For years, veterinarians and pet parents have struggled with a frustrating reality in canine behavioral...

Ask Dr. Paola- Help! Can Shock Collars Cause Seizures? (June 1, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Behind Most “Bad” Dog Behavior Is a Pretty Simple Problem (and Solution)

Dogs are supposed to be easygoing companions, and many seem to live up to it: sleeping on the couch for hours, watching the...

Justice For Pneuma and Melo

WARNING: THIS ARTICLE CONTAINS DISTRESSING CONTENT It’s every pet owner’s worst nightmare. You leave your dogs with people who are supposed to protect...

More related

Top 7 Dog-Friendly Beaches in Maine: Off- & On-Leash Places (2026 Guide)

Maine is a beautiful state with plenty of coastlines to enjoy. And what’s better than spending a day at the beach with your...

Bull Terrier vs Pitbull: Main Differences (With Pictures)

Bull Terriers and Pitbulls are two popular breeds that often get confused with one another. Both have a strong and muscular appearance, but...

25 Father’s Day Gifts for Dog Dads in 2026

As more than mere dog owners, pet parents take their jobs more seriously than anyone, giving their furry friends the guidance, care, and...

How to Train a Dog to Herd: 5 Vet-Approved Tips

If you’re planning to train your dog to herd but are a complete beginner, it can be hard to know where to begin....

Keep reading

Can Dogs Eat Bread? Vet-Verified Types & Risks

Humans have enjoyed bread since ancient times. It is a staple in most households, and we’ve derived so much pleasure from eating it. But if you’ve been thinking about sharing some with your dog, you want to ensure dogs can...

Can Dogs Eat Bread

8 Best Dog Foods for Diabetic Dogs in 2026 – Reviews & Top Picks

If your beloved dog has been diagnosed with diabetes, you may be in shock and overwhelmed by the situation. The good news is that with the right diet, lifestyle, and care, your dog can still enjoy many years of good...

Ginger dog eating

10 Best Dog Food Toppers in 2026: Reviews & Top Picks

Providing nutritious food and treats for your canine is vital for maintaining a healthy lifestyle. High-quality meals were once a niche market, but now, premium brand companies enjoy record sales. Although high-end pet food is typically produced with fewer fillers...

cute corgi dog eating dry dog food

Can Maltipoos Eat Human Food? Vet-Reviewed Facts & FAQ

Does your Maltipoo stare at you whenever you eat? Are you tempted to give them a bite of your food? Feeding your Maltipoo a bit of human food can feel like an act of love. However, not all human food...

Can Maltipoos Eat Human Food

7 Best Dog Foods for Weimaraners 2026: Reviews & Top Picks

The sleek, silvery Weimaraner makes a beautiful, fun addition to the home. Due to their high intelligence and never-ending energy, you will have a playmate whenever you want one and even after you’re worn out. In between games, your Weim...

Weimaraner eating dog food

Wellness Dog Food vs Blue Buffalo: Pros, Cons & What to Choose

One of the most frustrating moments as a pet parent is when you’re sitting there scratching your head over which food is better for your dog—especially when every brand claims to be the best! Two popular dog food brands vying...

Dogster_Dog Food Wellness VS Blue Buffalo

Can Dogs Eat Curry? Vet-Verified Facts & FAQ

Generally, dogs should never have curry because, in addition to being spicy and potentially causing stomach upset, it is also made with ingredients like garlic and onion that can be toxic to dogs. If your dog has eaten a small...

Can Dogs Eat Curry

Can Dogs Eat Syrup? Vet-Verified Nutrition Facts & Info

Our canine companions are pros at begging our food off us, and they aren’t picky either. Our pups are more than interested in eating everything we eat. But not all people foods are healthy for dogs; in fact, some foods...

Dogster-Can-Dogs-Eat-Syrup

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter