Why Do Dogs Chase Their Tails?

Why do puppies chase their tails?

Puppies chase their tails as part of normal play and body exploration. They are still learning what their body parts are and how they move, and the tail is a fascinating moving object that is always just out of reach. This is developmentally normal and most puppies grow out of it as the novelty wears off. Puppies also learn quickly that tail chasing gets a reaction from their owners, which can accidentally reinforce the behavior through attention. If a puppy chases its tail occasionally during play, there is nothing to worry about.

What medical causes trigger tail chasing?

Dogs that suddenly start chasing their tail may be responding to physical discomfort. Fleas and flea allergy dermatitis cause intense itching at the base of the tail. Impacted or infected anal glands create irritation that dogs try to address by biting or chasing their tail area. Skin infections, hot spots, and allergic reactions can all cause localized itching or pain near the tail. Intestinal parasites sometimes cause perianal itching. If tail chasing starts abruptly in an adult dog that did not previously do it, a vet check to rule out physical causes is the appropriate first step.

When is it a compulsive behavior?

Compulsive tail chasing is characterized by frequent, repetitive spinning that the dog seems unable to stop, even when called or distracted. The dog may spin to the point of exhaustion, ignore food or play opportunities, or become agitated when interrupted. This is considered a canine compulsive disorder, similar to obsessive-compulsive disorder in humans. Certain breeds, including Bull Terriers and German Shepherds, appear to be more predisposed. Compulsive tail chasing often develops from a combination of genetic predisposition, insufficient mental stimulation, and chronic stress or confinement.

How do you address excessive tail chasing?

Rule out medical causes first with a vet visit. If the cause is boredom, increase exercise and mental stimulation significantly; dogs that are physically tired and mentally engaged rarely develop compulsive behaviors. Avoid laughing at or giving attention to the behavior, as this reinforces it. Redirect the dog to a toy, a training exercise, or an activity when spinning starts. For genuinely compulsive cases, a veterinary behaviorist can develop a treatment plan that may include behavior modification, environmental changes, and in some cases, medication to reduce the compulsive drive.