Why Do Dogs Wag Their Tails

Fast tail wagging often reflects a happy, excited dog. The muscles move the tail side to side rapidly.

Happy Wags

When a dog wags more slowly, it may indicate insecurity or apprehension about a situation.


Higher tail wags tend to mean happier dogs. Lower tail positions can mean a dog is uneasy.

Tail Height Matters

Studies show dogs wag more to the right when seeing something pleasant, and more to the left when stressed.

Wag Direction 

Dogs wag to communicate with other dogs. Different wagging patterns can share their feelings.


Rapid wags also spread a dog's scent, allowing them to share their presence.

Scent Waving

Subtle, gentle tail wags can be a calming signal to other dogs not to be threatened.

Calming Signal

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