Why Do Dogs Tuck Their Tails? 5 Vet-Reviewed Reasons

By Rachael Gerkensmeyer · Reviewed & fact-checked by Dr. Maja PlatisaVet Approved

Reviewed & Fact-Checked byDr. Maja PlatisaVeterinarianDr. Maja has over 8 years of veterinary experience working with various animal species in the United Kingdom and the Channel Islands, from dogs, cats, rabbits, guinea pigs, to cows, goats, sheep, pigs, and poultry. Maja is very enthusiastic about veterinary volunteering work and often helps in neutering projects for stray animals in Greece. She has a wide range of skills in the fields of animal medicine and surgery, diagnostic imaging, endoscopy, microscopy and other aspects of clinical work. She is very passionate about animals and their health and loves to help our readers with any questions or issues with their four-legged family members and other animal companions. Her passion is small animal medicine and emergency work, while she also has a great interest in animal welfare. Dr. Platiša received her veterinary training and degree from the Faculty of Veterinary Medicine, University of Zagreb, Croatia, in 2015.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Read about our vetsUpdated on December 14, 2025

No matter the breed, dogs utilize their ears, eyes, mouths, and even their tails to communicate what they are feeling. Some dog breeds have what is referred to as a “gay tail,” in which their tails stay upright and often curl toward the back, typically when they're alert or engaged. But dogs can also tuck their tails for one reason or another. So, what are these reasons?

The 5 Reasons Dogs Tuck Their Tails

1. They’re Feeling Scared

Scared Dog Mixed Breed With Tail Tucked — Image Credit: Viktoriia Viktorovna, Shutterstock

When a dog feels scared and/or threatened and they cannot figure out a way to defend themselves, they are likely to tuck their tail between their legs. This is their natural response that can be perceived by other animals that might be threatening the dog and humans who are observing them. When a dog tucks their tail due to fear, the tail typically hugs the belly of the body tightly.

2. They Are Being Submissive

Sometimes, a dog will tuck their tail between their legs when they are being submissive to another dog or a human. Instead of hugging tightly against the body like when they are feeling scared, the tail is likely to quickly wag back and forth between the legs and under the belly. They may also be in a state of vigilance or excitement and are not usually relaxed at the time.

3. They’re Feeling Stressed Out

brown dog scared — Image Credit: Patrick H, Shutterstock

A dog might tuck their tail between their legs when they are feeling stressed out. The stress can be due to being left alone at home for too long, feeling anxious about a social situation that they are in, or feeling overwhelmed by a perceived problem that they are facing. Whatever the situation is, a tail tucked between the legs is a surefire sign that the dog should be taken to a quieter place.

4. They Are Experiencing Pain or Discomfort

When a dog feels ill, uncomfortable, or in pain of some kind, either affecting the tail itself or the body in general, they may react by tucking their tail between their legs. They might even be afflicted by a problem called limber tail syndrome. Formally called acute caudal myopathy, this usually develops due to overuse of the tail. The overuse causes a severe strain on the tail's muscles that results in a limp tail that may end up looking like it is tucked between the dog’s legs.

5. Their Tail Is Fractured

dog biting his tail — Image Credit: KPhrom, Shutterstock

If your dog’s tail suddenly seems to be tucked between your dog’s legs, your dog is quiet, painful, or is trying to lick and chew at the tail excessively, this may be due to an injury or even a fracture. If they fracture their tail, have any kind of a wound, or a soft tissue injury, they will be very reluctant to move it due to the pain, so the tail can lie flat or be tucked inward toward the belly. Sometimes but not always, a drooping tail problem caused by a fracture can be accompanied by other signs, such as swelling at the site of the fracture with or without a wound, pain, whimpering, pacing, licking and chewing the area, and a general display of discomfort.

In Conclusion

Sometimes, a dog’s tail is tucked between their legs due to an injury or ailment, but most of the time, it’s due to a temporary situation that is making them feel stressed, scared, or submissive. If you are unsure of why your dog is tucking their tail between their legs, it’s a good idea to contact your veterinarian for insight and guidance. It might be necessary to schedule a checkup appointment.