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 Do Dogs Wag Their Tails? 6 Vet Reviewed Reasons

Share

Happy,Golden,Retriever,Outside,On,The,Lawn

Most people assume that dogs will wag their tails when they’re feeling happy. However, dogs actually use their tails to communicate and express an even wider range of emotions. They can wag their tails when they’re feeling positive emotions as well as when they’re feeling negative emotions.

Looking at just a dog’s tail wagging won’t definitively tell you how they’re feeling. You must look at the rest of their body language to determine if they’re feeling happy, agitated, or nervous. We’ve listed several possible reasons your dog might wag their tail and how you can figure out how they’re feeling.

divider dog faces oct 2024

The 6 Reasons Why Dogs Wag Their Tails

1. Happiness

Golden Retriever Wagging Tail
Image Credit: Hollysdogs, Shutterstock

One of the most well-known reasons why dogs wag their tails is because they’re feeling happy and are in a good mood. Dogs will wag their tails when they notice something that they like. This can include seeing their favorite people walk into the room, hearing a bag of treats opening, or smelling delicious food wafting from the kitchen. When dogs are happy, their tails will usually be high up and wagging.


2. Nervousness

Sometimes, dogs will wag their tails when they’re feeling anxious or nervous. Again, the more intense the wagging, the more intense the emotion often is. Dogs will also engage in many other behaviors to express their nervous energy. Some dogs will pace around or be shaking. They can try to hide from view and make themselves appear smaller by tucking their tail and curling up.

Dogs experiencing more intense anxiety may urinate indoors, even if they’ve been potty trained. They can start to become depressed or more irritable and begin to lose interest in eating and doing activities that they normally enjoy.


3. Curiosity

Curious Basset Hound Puppy
Image Credit: Melinda Klein, Shutterstock

Dogs may wag their tails when something has piqued their interest. You may notice your dog’s tail wagging when you’re going on a walk, and they suddenly pick up an interesting scent trail. The more curious they are about the smell, the faster their tail will wag.

If something has caught your dog’s curiosity, your dog’s ears may also perk up and be more alert. They might tilt their head to adjust their sight on something or get a better hearing of a strange sound.


4. Alertness

Dogs that are alert often have their tails sticking straight out and wagging slightly. They’ll take time to observe their surroundings with all their senses. You’ll notice their ears are perked up and pointing forward, and their eyes are focused and wide open. They’ll be standing with their weight evenly distributed on all their legs and will look ready to react to whatever’s caught their interest.


5. Playfulness

newfoundland dog playing a ball with owner at the park
Image Credit: Roman Zaiets, Shutterstock

Dogs are usually happy when they’re playful, so it’s no surprise that their tails will often be wagging. Some dogs may wag their tails back and forth to entice others to play with them and chase them.

Dogs that want to play will usually play bow. They can have their mouths open, and it’ll look like they’re smiling. They might even growl playfully if they’ve gotten themselves into a wrestling match.


6. Stress

Dogs can start to become restless and wag their tails when they’re feeling stressed or agitated. Stressed out dogs can begin to pace around, whine, or bark. Some dogs may yawn, pant, or lick their lips when they’re stressed out. Their ears are usually tucked close to their heads, and they can also have raised hackles.

If your dog is showing signs of stress, we suggest you speak to a vet.

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 pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog faces oct 2024

Do Dogs Wag Their Tails on Purpose?

Dogs can control their tail movement,  however, tail wagging is often an instinctual behavior that dogs may unconsciously engage in when they’re feeling certain emotions. So, a dog’s tail often becomes a reliable source of information about how a dog is feeling. Of course, you have to observe other body language cues to determine their exact emotion.

Dogs may also wag their tails to communicate from a distance. It’s easier to notice a tail wagging from far away, and it can signal to other dogs whether a dog is feeling friendly or aggressive.

You are free to use this image but we do require you to link back to Dogster.com for credit

divider dog faces oct 2024

Conclusion

A dog’s tail is a communication tool, and it’s used to express many different emotions. So, make sure to pay attention when your dog is wagging their tail. They’re communicating with you, and reading the rest of their body language can help you determine how they’re feeling. Being mindful of these types of canine body language cues ultimately helps you understand your dog better and know how you can best care for your dog’s needs.


Featured Image Credit: Aaron Pletta, 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

Dogster’s Weekly Photo Contest Winners: My Best Trick (April 16, 2026)

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

From Grief to Gratitude: How One “Potato” and a Road Trip Changed Everything

The “COVID Puppy” phenomenon is a well-known chapter of the pandemic, but for Alexis Walling, the arrival of a tiny, wrinkled English Bulldog...

Why Dogs Play Too Rough — And the Simple Fixes That Prevent It From Becoming a Problem

A dog that plays too rough with others is a problem that builds fast. One minute, the dogs are running and chasing, the...

Ricky Gervais Says: It’s Time to Release The Dogs

As activists prepare to carry out the biggest Open Rescue in the history of animal welfare, Ricky Gervais says, “it’s time to release...

More related

How to Keep a Dog Busy While Working From Home: 16 Expert Tips

As a dog owner, working from home is a double-edged sword. On one hand, you don’t have to worry about finding a dog...

Why Does My Dog Want to Go Outside Every 5 Minutes? 4 Vet-Verified Reasons

Dogs can be goofballs and provide us with daily entertainment. Most dogs love to have something to do to avoid boredom, such as...

Can You Put Bacon Grease on Dog Food? Vet-Approved Facts & FAQ

While your dog probably works up a pool of drool every time you start frying some bacon, do not add the grease from...

When Is It Safe to Expose Puppies to Other Dogs? Vet-Verified Health Safety Facts & Tips

Although some vets recommend waiting until a puppy is fully vaccinated before meeting other dogs, new owners are also told that early socialization...

Keep reading

Can Dogs Eat Pine Cones? Vet-Verified Facts, Risks & What to Do

Dogs are omnivorous animals, which gives us a bit of leeway in terms of extra treats we can feed them in addition to their regular dog formula. However, dogs sometimes take a fancy to weird things like non-edible bits and...

Can Dogs Eat Pine Cones

Can Dogs Eat Lamb? Vet-Approved Nutrition Info & Preparation Tips

You might be thinking about introducing lamb to your dog and wonder if it’s a good choice. Dogs need a high-quality protein source for the formation and maintenance of ligaments, tendons, and cartilage. Protein also assists with skin, muscle, hair,...

Can Dogs Eat_lamb

Nulo Dog Food Review: Recalls, Pros & Cons

Review Summary Nulo was created with quality care for dogs in mind. Its founder realized that there weren’t enough care options available for dogs for last-minute requests. He also noticed that there was a bit of a health crisis in...

Dogster_Nulo Dog Food Review

Can Dogs Eat Crab Apples? Vet-Verified Nutrition Facts, Benefits & Risks

Have you ever been out on a walk with your pup in the fall season and seen tiny apples littering the ground? Those are crab apples (Malus sylvestris), an older version of European cultivated apple species. These small apples are...

Dogster-Can-Dogs-Eat-Crab Apples

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 and nutrient-rich treat for your dog. However, while dogs can technically eat organ meat, it’s crucial that...

Cooked chicken livers and gizzards in hot cast iron pan

Can Dogs Eat Goat Cheese? Vet-Verified Nutrition Facts & FAQ

Goat cheese might not be among America’s top 15 most consumed cheeses, but it certainly has its fans. You probably won’t have any problem getting your dog to eat it, but does that mean you should? The answer raises more...

Can Dogs Eat Goat Cheese

How to Keep Ants Out of Dog Food: 10 Easy & Effective Tips

Do you have a problem with ants getting into your dog food? If so, you’re not alone. Ants are persistent and can find their way into even the most well-protected areas. In this blog post, we will discuss how to...

ants on dry kibble

Solid Gold Puppy Food Review 2026: Recalls, Pros & Cons

Review Summary The Solid Gold dog food brand came to be in 1974 and during the early years, most of their foods contain more natural ingredients that were based on a holistic diet. The company was founded by Sissy Harrington...

Dogster_Solid Gold Puppy Food Review

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