Why dogs do it
Why does my dog chase its tail?
A puppy whirling after its own tail is comedy. A grown dog doing it every evening, or chewing the tip raw, is a different question. Tail chasing sits on a spectrum from silly play to something that needs medical or professional attention, and the clues for telling them apart are mostly in how easily the spinning stops and what the dog does when it catches up.
Last reviewed October 4, 2026
Four common causes
Play, boredom, an itch or a loop.
Play is the gentlest reason. Many puppies discover the tail as a moving toy and lose interest as they mature. Boredom is next: a young, busy dog with too little to do may spin to burn energy, often at the same dull time each day. Attention is the sneaky one. If everyone laughs or films it, the dog may learn that spinning is the fastest way to become the main event.
An itch or discomfort looks different. The dog targets the tail base or rear, nibbles or licks once it catches up, and may scoot or fuss at the area. A compulsive pattern looks different again: long bouts, a glazed or fixed look, and real difficulty breaking away even for food or a favourite person. Some herding and terrier types seem prone to repetitive spinning, so breed is worth mentioning to your vet.
- Can you call it off?
- Does it bite once caught?
- Same time every day?
- Does laughter keep it going?
Next steps
When the vet goes first and when training helps.
See a vet first if the dog bites, chews or licks the tail, if hair is missing or skin looks sore, if there is scooting, or if bouts are long, frequent or hard to interrupt. Compulsive spinning is not something to punish or simply ignore. A vet, sometimes alongside a behaviour professional, is the right starting point. Behaviour may temporarily increase as routines change, and persistence or escalation is a reason to reassess.
Where the vet finds nothing and the chasing is about energy or attention, training can help. Our how-to guide walks through the method, so here we only point at the shape of it: more structure, more outlets, calmer reactions from the family. Day Training, $650 + GST per week, offers weekday one-on-one work, enrichment and supervised play. The consultation recommends a format, including a lighter one when that is plenty.
Asked and answered
The questions people ask us.
Is it bad if my dog chases its tail?
Occasional, playful tail chasing that stops when you call your dog is usually harmless. Frequent bouts, biting at the tail or spinning that is hard to interrupt are reasons to see a vet.
Why does my puppy chase its tail?
Many puppies treat the tail as a toy while they are learning how their bodies work. Keep an eye out for biting or sore skin, and give plenty of other outlets for play.
Can tail chasing be a sign of OCD in dogs?
Repetitive tail chasing can be a compulsive behaviour in some dogs. Only a vet or behaviour professional can assess that, so book an exam rather than guessing from home.
Should I laugh or film my dog chasing its tail?
It is tempting, but attention can reward the spinning and make it more frequent. Calmly redirecting to a toy or a known cue is a kinder habit to build.
Keep reading
Spinning more than you like?
Book a consultation once your vet has had a look, and we will suggest a format that fits your dog's energy.
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