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

The Crate Setup Most Dog Owners Get Wrong (And How To Fix It!)

Most people assume that if their dog hates the crate, the crate is the problem. So they try a bigger one, a different...

1,500 Beagles Rescued from Wisconsin Lab Farm – Here’s Where They’re Going

You may remember that a few weeks ago, we reported on a tense situation at Ridglan Farms, Wisconsin, a facility infamous for housing...

Dogster’s Weekly Photo Contest Winners: Window Watchers (May 11, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Can a Relationship Work When One Person Doesn’t Like Dogs? Tips & When to Walk Away

For dog owners, a partner who doesn’t like dogs isn’t a minor quirk to overlook. Dogs aren’t a hobby you can scale back...

More related

How to Train a Doberman to Be a Guard Dog: 4 Vet-Approved Tips

Dobermans may appear to be aggressive and threatening, but they are kind and gentle at heart, which may make the perfect combination for...

Complete Dog Sitting Checklist: 21 Items & Instructions (Vet Approved)

It can be extremely stressful to think about leaving your pup in the hands of a pet sitter, but it is also unrealistic...

Walking Three Dogs on Leash: A Tale of Tangles

Hi, I’m Dr. Maja! Read my introduction to learn more about me and my two crossbreed dogs, Lava and Hela. Going for a...

Organ Meat for Dogs: Vet-Verified Safety & Preparation Tips 

Organ meats from animals that are raised properly and safely, such as farmed chickens, turkeys, ducks, cows, and sheep, can be a healthy...

Keep reading

What Is Blood Meal in Dog Food? Health Facts & FAQ

You’re looking at the ingredients of your dog’s favorite dry food and come across this word: blood meal. What is it exactly? Will your beloved pooch benefit from it, or is it a potentially dangerous ingredient? The term “blood meal”...

dry dog food in a bowl on wooden table

Feeding Senior Dogs: Vet-Verified Tips & Understanding Nutritional Needs

Our senior pups have hopefully lived a long, happy life, and they deserve to continue even as they age. When our dogs start to reach their golden years, their body starts to slow down a little. No matter how healthy...

dog eating in a food bowl

Are Greenies Good for Dogs? Vet-Approved Nutrition Guide

Dental disease is one of the most common canine health problems. Dental problems can be painful and make it difficult for dogs to eat. Severe periodontal disease can make dogs more vulnerable to tooth root abscesses and organ disease. That’s...

Greenies bites out of package

Is There Horse Meat in Dog Food? Separating Truth From Fiction

There is a great deal of information floating around about dog food and its ingredients, and it can certainly be difficult to tell facts from fiction. For example, you may have heard that there is horse meat in dog food....

Fresh horse meat on a platter

Can Dogs Eat Daikon? Vet-Approved Facts & FAQ

As daikon radishes gain popularity in human cuisine, it’s only natural for dog owners to wonder if it’s safe to share this sweet and crunchy vegetable with their pups. The short answer is yes, dogs can eat daikon—not only is...

Can Dogs Eat Daikon

Can Dogs Eat Tamales? Vet-Verified Nutrition Facts & FAQ

Tamales are popular in Mexican cuisine, and people worldwide love to eat them. If you also love to eat tamales and have a dog, you’ve probably noticed your canine lurking around, looking for tamale scraps. Tamales are not suitable for...

Can Dogs Eat Tamales

Can Dog Food Cause Elevated Liver Enzymes? Vet Approved Info

Blood tests provide a great gauge of your dog’s overall internal health. If you’ve recently had blood testing done and are curious about your dog’s high liver enzymes, you should familiarize yourself with what they mean and what’s causing them....

Ginger dog eating

12 Best Gourmet Dog Foods in 2026 – Top Picks & Reviews

We all want what is best for our canines, and premium food can be just the way to ensure that happens. Gourmet dog food options are becoming more popular as pet owners become more aware of their dog’s dietary needs,...

White fluffy dog looking at Ollie fresh dog food chicken and beef recipes on table

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