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Why Do Dog's Tails Wag - and What Does it Mean For Your Bond?

Did you know that it takes 3-4 weeks before a puppy starts to wag its tail (depending on their breed)?

After this time, their doggie instincts kick in and they start to wag their tail to communicate with their mother to let them know they are hungry; and they start communicating with their siblings by wagging their tails - for example, to let them know they’re in the mood to play!  

Tails have other uses too! A dog also uses their tail for balance and to act as a rudder when they are swimming, or when they are on uneven ground. And when they are running or chasing, dogs use their tails to help them quickly turn direction - if you watch a dog when it is running, you will notice that their tail follows the direction of their front legs, acting as a counterbalance until their hind legs catch up.


A wagging tail can tell you so much about how your dog is feeling and, combined with other body language signs, is a great communication tool. In addition to this, different breeds of dogs have different sizes and shapes of tails, so it’s not a case of one size fits all!

Let’s explore why dogs wag their tails, and what the different tail movements and positions mean.

The neutral position

This may vary slightly from breed to breed. Some dog tails naturally hang down near their heels, but some (like curly tail breeds) may carry their tails higher. If your dog’s tail wags in a broad, sweeping movement, this normally means your dog is feeling relaxed.

Wagging to the right

This suggests a positive emotion and normally means the dog is relaxed and happy - for example if they meet a person or other dog they recognize.

Wagging to the left

This can indicate a negative emotion, and mean that your dog may be feeling stressed.

Research has shown that dogs also recognize the direction of a tail wag in other dogs and understand their mood or emotion - and react accordingly. In one study, dogs watching the tail of a dog wagging to the right mostly stayed relaxed. However, when watching a dog’s tail wagging to the left, they showed signs of increased anxiety.

The helicopter wag

If your dog is excited - for example when they meet someone they know, or another dog - their tail movement can wag in a circular motion, a little like a helicopter!

The wagging tail & body

Adding a wagging body to a wagging tail - and that means your dog is super excited and wants to interact with you ! This is a good time to play with your pet!

corgi dogs looking at owner

A low, tucked in tail

This could indicate they are wary of a situation and nervous. They are letting others know that they mean no harm, but if the situation does not resolve itself then they may react adversely. Look for other body language signs that may indicate they are stressed and fearful - like lip-licking, yawning or trying to hide - and try to diffuse the situation to make them more relaxed.

Gentle wagging

If your dog is holding their tail level with their body, and only gentle wagging, it could mean they are uncertain but curious - perhaps you have a new visitor to the house that they have never met before.

german short haired point wagging tail

Rapidly wagging from side to side

You will know that your dog is concentrating on something - like they are following a scent - if their tail is rapidly wagging from side to side.

A rigid vertical tail with a small wag

The high tail could mean that your dog is alert and something has caught their attention. There may be a narrow wag or even just the tip of the tail wagging, too. Their next move might be unpredictable. Try to understand why your dog is aroused (it could be they are excited or worried) and diffuse the situation if necessary by redirecting their attention and giving them space.

Rigid rather than relaxed wagging

If your dog is uncomfortable with a situation, their wagging tail might be rigid, rather than the wide, fluid wag of a relaxed dog.

young dog puppy with calm tail


A wagging tail means your dog is interacting but it is important that you take into account their body language and the surrounding situation to make sure you fully understand whether they are anxious, wanting to protect themselves or they are greeting you. The more you understand your dog, and can react to their wagging tail in the right way, the stronger your bond will be.

Using ADAPTIL in the home will help keep your dog calm in situations where they may feel stressed.  It will help to strengthen your bond, by creating a reassuring environment at home, and provide constant comfort for your dog - leading to a lot of happy tail wagging!

How stressed is your dog when home alone, take the quiz

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