Although our pets can’t speak, their behavior provides insight into their feelings.

If your dog is wagging its tail, it likely means they are happy, says Dr. Aya Alt, medical director at VCA Broadway Hospital and Pet Center. Conversely, if your dog is vomiting, it’s a signal to visit the veterinarian.

But what about when dogs chase their tails? This behavior might have various interpretations, some harmless, while others could indicate health issues, Alt warns.

Why do dogs chase their tails?

According to Alt, it’s perfectly normal for dogs to chase their tails from time to time.

If your dog engages in tail-chasing occasionally and can be easily diverted, it’s usually not a concern, she explains. Such behavior typically shouldn’t disrupt a pet owner’s daily life.

Puppies, in particular, often chase their tails as they explore their bodies through play.

As dogs grow older, they may continue this behavior. However, it can become problematic if they do it excessively, Alt cautions.

There are numerous reasons behind your dog’s tail-chasing behavior. Certain breeds are predisposed to it; for instance, Bull Terriers are famously known for this habit, according to Alt.

Researchers have found a particular gene in Bull Terriers that can intensify their obsession with their tails, she explains. In extreme cases, some of these dogs may chase their tails so much that it disrupts their normal activities, like eating.

German Shepherds also exhibit tail-chasing behaviors and are known for experiencing pain related to lower back or hip issues, Alt mentions. Tail-chasing in these dogs can indicate discomfort.

Moreover, skin irritations or flea infestations can lead to tail-chasing, as can anxiety or stress, she adds.

How can I stop my dog from chasing its tail?

For adult dogs, tail-chasing occasionally isn’t usually concerning, Alt notes. However, if the frequency changes, it’s a good idea to consult your veterinarian.

“We should check for fleas, and we might need to perform X-rays, physical examinations, or even MRIs to rule out any hidden medical problems that might be causing pain,” she explains. “A comprehensive medical evaluation is needed to identify any underlying issues.” If there are any concerns, medications may be recommended to address the mental or physical problems.

From there, vets can determine if the tail-chasing behavior has become compulsive.

“When it’s an obsession, it’s not helpful to tell the dog ‘no’ or ‘stop’ during the behavior because this can give them attention, which may reinforce the behavior,” she explains.

Owners should look for ways to divert the behavior without direct confrontation. “For example, you could leave the room, as dogs often want to follow,” she suggests. “Putting on their harness for a walk can also be effective since they can’t chase their tail while walking.”

Additionally, rewarding non-tail-chasing behavior is beneficial. “You can give them a treat for quietly observing the world out the window or just resting,” Alt recommends.

If you aim to discourage tail-chasing, figuring out the underlying cause is vital. “Every situation is unique,” says Alt, and veterinarians can assist in evaluating changes in your dog’s behavior.