Why is My Dog Chasing Their Tail?

Whether out at the park or right in your living room, live and in-person or animated and on TV, the odds of you seeing a dog chasing their tail are pretty good. Sometimes it's a few enthusiastic loops in response to a seemingly exciting event; other times, it can look more like an endless cyclone, as the dog chases their tail over and over until they find a new distraction.

As a dog parent, you probably have some questions about this peculiar behavior, most specifically: why is your dog chasing their tail? Is it because they're bored, burning off extra energy, or is it for fun? Can dogs make themselves dizzy from chasing their tail?

Wonder no longer! We're diving into four common reasons why your dog may be so fascinated with their tail.

1. Boredom

Why is your dog chasing their tail? More likely than not, they may be lacking mental stimulation, looking for attention, or simply trying to burn excess energy. That's the case for lots of dogs — especially younger dogs and puppies. Often, these dogs find that running in circles is great fun!

For puppies who might not recognize their tail as part of their body yet, it can even be a source of fun. They see a fuzzy object in their periphery and assume it is another animal worth chasing. Running in circles doesn't appear to make dogs dizzy in the same way as humans, says Wag!, so they can keep going for quite a while.

2. A Medical Condition

If your dog chases their tail on occasion, that's totally normal. However, if this behavior is constant, it could signal a more serious issue. According to veterinarian Dr. Steve Weinberg, in an interview for the American Kennel Club, "Obsessive chasing could be due to a brain abnormality akin to seizure-like activity. Other reasons could be a painful area where a tail was docked, an infection or even cancer."

Some experts believe that tail chasing may even signal mental illness in dogs. As The Guardian reports, obsessive tail chasing is considered a symptom of canine compulsive disorder.

If left unchecked, this behavior can become self-destructive, resulting in dogs damaging their tails. If you believe your dog is obsessively chasing their tail, consult your vet.

3. Genetics

According to research published by the Journal of Small Animal Practice, there may be a connection between compulsive tail chasing and high blood and cholesterol levels. Researchers found that the 15 tail-chasing dogs they observed had significantly higher levels of total cholesterol and both high- and low-density lipoprotein cholesterol than the control dogs. More research needs to be conducted on the genetic link, but this was an interesting finding, nevertheless.

Keep in mind, there's a vast range of reasons why your dog is chasing their tail. If you two are getting outside for plenty of exercise and playtime together, but you still notice this behavior, you may want to keep an eye on it. If you observe your dog chasing their tail in obsessive, nonstop ways, you may want to hop over to the vet just to ensure there's nothing wrong.