Why Does My Dog Bark When I Leave? 8 Things to Try

Supporting your dog while you're not there can seem impossible. But there are plenty of ways to help them manage while alone.

We explain eight science-backed techniques to help you support your pup when you leave the house.

Key Takeaways

A significant minority of dogs get stressed when their owners leave the house.
That stress can manifest in excessive barking.
Boredom and territorial instincts can also cause barking when you're not at home.
Approaches include behavior modification, stimulation, crate training, using a dog walker, and CBD to promote relaxation.

Why Dogs Bark When Left Alone

Sean Zyer, founder of Earth Buddy, says:

"Many dogs bark when their owners leave, often because of stress, boredom, or territorial instincts."

It's no secret that dogs love their families. We pet parents know that well.

Most of the time, that's great. Few things feel better than coming home to your furry friend's excited face and wagging tail.

But what about when you leave the house?

As much as we might prefer to stay with our pups all the time, at some point or another, they'll need to spend some time alone. They might not like it, but it's not the end of the world.

Unfortunately, some dogs get really upset when their people leave. It's actually more common than you might think. Up to one in every four dogs struggles to cope with being left alone.¹

In part, that's because dogs grow very attached. Research has shown that dogs can develop deep emotional connections with their owners.²

Stress is one common reason for excessive barking from dogs. If your dog barks constantly when you leave, it might be because being alone stresses them out.

However, other dogs may bark when left alone for other reasons. Boredom is one example. Some dogs' territorial instincts might prompt them to bark at perceived threats.

Fortunately, there are ways you can address your dog's behavior.

Learn More: How to Comfort Your Pet With a Fever

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8 Things to Try With Your Barking Dog

The first step is figuring out why your dog is barking so much. Are they stressed? Bored? Territorial?

Think about whether your dog is particularly attached to you. Are they particularly clingy when you are around?

Other signs of stress include decreased appetite, shivering, destructive behavior, and restlessness.³

If your dog doesn't seem to be stressed, they might be bored. Other signs include destructive behaviors, overeating, or sleeping excessively.⁴

What if your dog doesn't seem stressed? They might be territorial. Check if your dog specifically barks at perceived threats, like movement outside or a knock on the front door.⁵

Once you've determined why your dog is barking so much when you leave, you can try some methods to support them.

#1. Promote Relaxation

Many dogs get stressed when their owners leave. A great way to help your dog maintain a normal disposition is with CBD.

Dogs, like humans, have an endocannabinoid system. It's a complex network of signals and receptors that interacts with and helps balance many bodily functions, including mood.

Those signals are called endocannabinoids. CBD is a cannabinoid and can also interact with the endocannabinoid system.

It's "really important in keeping the body's own endocannabinoids around," explains veterinarian Dr. Casara Andre, in conversation with Earth Buddy founder Sean Zyer. "The molecules that I'm making right now, that your dog's making … that are essential for them balancing their lives — they can literally be used up.… The CBD molecule is really powerful at … slowing down the destruction of these endocannabinoids.… That's a really lovely way to support what the body's already trying to do."

Research has shown that CBD can provide a calming effect. It can also support normal behavior, and may help curb destructive behavior.

One 2024 study gave CBD to dogs before a stressful car ride. Researchers found that CBD helped reduce signs of stress in the dogs, such as whining.⁶

Research also suggests that CBD can help dogs maintain a normal and relaxed disposition. A large 2025 study tracked over 47,000 dogs. Dogs given CBD "for extended periods were described as having lower-than-average aggression levels compared to dogs with no CBD use."⁷

One great way to give your dog CBD is with CBD oil. Earth Buddy's CBD Oil blends organic CBD oil with organic MCT oil from coconuts. You can give it to your pup straight from the dropper, mix it into their food, or use it to make delicious treats.

You can also give your dog CBD with professionally made calming treats. Earth Buddy's Calming Chews for Dogs come in two tasty flavors: Beef & Pumpkin, with 10mg of CBD in each treat, and Duck & Apple, with 5mg in each treat.

Alternatively, try Earth Buddy's Hemp Hearts. The Blueberry option blends whole plant extract with antioxidant-rich berries. Pumpkin blends hemp extract with fiber-rich pumpkin.

#2. Gradual Desensitization

Sometimes, things become less scary to us the more we become accustomed to them. With careful techniques, you may be able to desensitize your dog to the fact that you leave sometimes.

The process is called systematic desensitization and is based on the idea that stressful events exist on a spectrum. You leaving might be super stressful, but what about departure cues, like you getting ready to leave? What about leaving for five minutes instead of five hours?

Experts generally recommend starting with a very mild version of the stressful event, mild enough not to stress your dog too much. Repeatedly perform the action, showing your dog there's no reason to be stressed.

That might be putting on your shoes, but not actually leaving. It might be stepping out of the door and then coming right back in.

The idea is that, over time, your dog will no longer have an emotional response to the stimulus. You can then gradually increase the intensity of the stimulus. Eventually, if the process works, your dog should have become accustomed to you leaving altogether.

Research has demonstrated that systematic desensitization can help dogs manage normal stress. One study found that dog owners who applied systematic desensitization to their dogs reported an average improvement of 40% to problematic behaviors.⁸

#3. Counter Conditioning

Counter conditioning is another behavior modification technique that has been widely used to stop dogs barking.

The idea behind counter conditioning is to change how your dog feels about something, such as being left alone. One way to do this is to give your dog something they love when you leave. Over time, that should help them associate your leaving with something positive rather than something stressful.

What you give your dog depends on what they like. The ASPCA recommends giving them a puzzle toy stuffed with tasty food, which will take your pup a while to polish off after you leave. It can help them associate being alone with something positive.

The key is to make sure your departure comes before the reward. Or, at the very least, at the same time.

One study applied a combination of counter conditioning and systematic desensitization to 91 stressed dogs. The approach helped reduce the effects of normal environmental stress in 100% of the dogs.⁹

#4. Play Fetch (and Other Stimulation)

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One common reason dogs bark when left alone is because they're bored. A lack of physical and mental stimulation can also contribute to dogs getting stressed when left alone, too.

For example, one study of thousands of dogs found that daily exercise was the largest factor associated with separation stress. Researchers concluded that stressed dogs "had less daily exercise."¹⁰

Make sure to give your dog enough exercise. How much is enough varies depending on many factors, like age, breed, and size.¹¹ That could entail walks, or playtime like fetch to burn off excess energy.

Mental stimulation is also important. Interactive toys, training sessions, and hide and seek are a few great ways to provide mental stimulation to your pup.¹²

After all, you know what they say. A tired dog is a quiet dog.

#5. Crate Training

When used correctly, a crate can be a place of security and safety for a dog. They can go there when they feel stressed, such as when left alone.

The key to crate training is to start early and go slowly. It relies on promoting a positive association with the crate. That can come through treats, praise, and other good things.¹³

#6. Use Calming Aids

Beyond CBD, various things can help promote relaxation in dogs. Examples can be as complex as pheromone diffusers or as simple as white noise.

Take white noise machines. They can help drown out potentially stressful noises from outside. The noise can also help dogs manage normal stress.¹⁴

You could even try music. Research suggests that certain kinds of chill music, like slow classical, reggae, and soft rock, can promote relaxation in dogs.¹⁵

#7. Build a Routine

Dogs thrive on routine. The unexpected can be stressful. Especially when the unexpected is your favorite person suddenly leaving.

Research suggests that changes in your routine can be stressful for dogs. In turn, it also suggests that sticking to a consistent routine can help dogs manage normal stress.¹⁶

#8. Professional Help: Get a Dog Walker

Sometimes supporting our dogs requires enlisting a little help. If your dog barks when they're left alone, one approach is to give them some company.

Dog walkers can break up long periods of being left alone. They can give your dog physical contact, exercise, and mental stimulation.

If absolutely nothing seems to work, check with your vet. They'll be able to help you figure out what's going on.

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Conclusion

It's quite common for dogs to become stressed when their owners leave. Stress, boredom, and territorial tendencies can all contribute to a dog barking when you leave.

Things to try include CBD to Promote Relaxation, exercise to tire your dog out, and behavior modification.

Keep Reading: 9 Reasons To Consider MCT Oil For Your Dog

Frequently Asked Questions

How Do I Get My Dog to Stop Barking When I Leave?

If your dog is stressed, you could give them CBD to promote relaxation. Another common approach is behavior modification, such as systematic desensitization and counter conditioning.

How Do You Say "I Love You" in Dog Language?

Dogs don't speak our language, but we can still communicate. Ways you can show affection include soft eye contact, gentle physical closeness, and a soothing, positive tone of voice.

What Is the 3-Bark Rule?

The 3-bark rule is a technique for barking dogs. The idea is to let your dog bark up to three times before acknowledging what they are barking at and signaling them to be quiet. Make sure to reward them when they obey.

Sources

Earth Buddy is an environmentally conscious and family-owned company dedicated to providing natural solutions for pets. From our CBD oils to our colostrum supplements, our products are designed to promote calmness and encourage relaxation for our furry friends. To learn more and stay connected, follow us on Facebook, Instagram, LinkedIn, YouTube, and Pinterest.

Why Does My Dog Bark When I Leave? 8 Things to Try

Key Takeaways

Why Dogs Bark When Left Alone