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Bones and joints

Happy tail syndrome

Happy tail syndrome is an injury to the tip of the tail that happens when a dog wags so hard that it keeps hitting the tail against walls, furniture or door frames. The wound at the tip keeps reopening, so it heals poorly, hurts and can become infected. Dogs with long, thin, short-haired tails and a cheerful, energetic nature are more at risk.

Updated

1 breed

What it is

The tip of the tail has little padding but plenty of small blood vessels, so even a small split there bleeds freely. Each joyful wag knocks the wound open again before it can close, and blood is flicked across walls and furniture, which can make a small cut look far worse than it is. A wound that keeps reopening can become infected, and the tip can grow very sore.

The problem is acquired, not inherited: it comes from a long, slim, short-haired tail meeting a narrow space, such as a hallway, a crate or a kennel, in a dog that is simply delighted to see you.

Life at home gets easier when your dog has room to wag: greet it in an open space rather than a tight corridor, and keep it from wagging against hard edges. A sore tail can make a dog guard its back end or shy away from being touched.

Signs you may notice

You may notice spatters of blood on walls, furniture or the floor, and the tip of the tail looks scraped, bleeding or bald. The dog may lick or chew the tail or guard it from being touched.

When to see a vet

Book a visit if the tail tip keeps bleeding or reopening, or if it looks swollen, smells unpleasant or seems very painful.

This is general information, not veterinary advice. For your own dog's health, tests and treatment, see a vet.

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