Why Do Great Pyrenees Have Double Dew Claws: Understanding These Unique Claws

The Great Pyrenees dog breed is one of only a handful of purebred dog breeds in the world that has double dewclaws.

If you are just learning about dogs or about the Great Pyrenees breed, you may not even be sure what dewclaws are and what they are for, let alone why a dog would need two of them.

This is exactly why we are going to spend some time discussing this unique and important feature of the Great Pyrenees dog’s feet.

Those double dewclaws would not be there if there wasn’t a good reason. So let’s find out what it is!

Why Do Great Pyrenees Have Double Dew Claws?

Modern canine biologists believe that the Great Pyrenees dog has double dewclaws because these extra claws helped keep the dog stable when navigating difficult mountain terrain.

Back when the Great Pyrenees primarily worked herding sheep over rough mountains territories, having those two extra claws on their hind feet sure would have come in handy!

The double dewclaws typically only occur on the Great Pyrenees dog’s hind feet. The front feet have single dewclaws only.

Learn More About the Great Pyrenees Dog Breed History

This short, interesting YouTube video gives you a quick overview of the history of the ancient Great Pyrenees dog breed, including the fact that double hind dewclaws are always present with purebred Great Pyrs.

The Great Pyrenees Rescue of Southern Ontario states that many people who are first getting introduced to the Great Pyrenees dog breed are understandably curious about why two dewclaws are present on the hind paws.

In the rare case that a Great Pyrenees puppy has only one dewclaw on each hind foot, there are two possible reasons:

1. The dog was simply born with a genetic malfunction that caused single dewclaws.
2. The dog has mixed canine genetics somewhere in the lineage.

What Are Great Pyrenees Dewclaws?

The Carolina Great Pyrenees Rescue charity offers a great explanation of what dewclaws (also spelled “dewclaws”) are and what they are used to do.

You can also see photos and even an X-ray of a Great Pyrenees dog’s double dewclaws to help you better visualize their internal structure.

Dewclaws are basically extra toes on a dog’s foot. These toes are higher up on the paw – more in the area of what might be called the ankle if it was your foot – and do not usually touch the ground.

Some dog breeds do not have any dewclaws at all on their front or rear paws. Some dog breeds have single dewclaws on their front or rear paws or both.

And some rare dog breeds such as the Great Pyrenees have double dewclaws on their hind paws and single dewclaws on their front paws.

As Psychology Today explains, this unusual trait is called polydactyly, a term which basically means the dog has more than the standard number of toes.

Why Does the Great Pyrenees Have Double Dew Claws on Their Rear Paws?

Psychology Today’s canine expert Stanley Coren, Ph.D., points out that the presence of dewclaws on modern dog paws is like catching a glimpse into a dog breed’s distant genetic past.

Although today we have no records that date back 11,000 years to when the Great Pyrenees dog breed is widely thought to have gotten its start, modern canine researchers believe the double dewclaws served as stabilizers for the feet.

As PetMD points out, there are two main types of dewclaws:

  1. A digit (toe) that is attached by its own dedicated bone to the structure of the dog’s foot.
  2. A digit (toe) that is attached by skin only to the structure of the dog’s foot.

Dewclaws attached only by the skin

The latter type of dewclaw – the type that is attached only by skin to the structure of the foot, is not thought to have any modern purpose.

It may be a vestigial dew claw – basically one that used to have a purpose hundreds or thousands of years ago but no longer does. And so today it is still there but no longer even connected by bone because it serves no purpose.

In the case of this type of dewclaw, canine veterinarians and breeders often recommend removing the little flap of skin because it may get caught on something and cause skin abrasions or worse.

Dewclaws attached by bone and skin

But as you now are aware, this is not the kind of dewclaws that a Great Pyrenees dog has.

The Great Pyrenees has fully functional dewclaws on all four paws – two on each hind paw and one on each front paw.

These dewclaws are connected by bone to the rest of the structure of the foot and they do serve a purpose to the dog.

While some dog breeders may choose to remove the dewclaws on their puppies, this is not customary among Great Pyrenees breeders. The reason is simple: the American Kennel Club (AKC) purebred show dog standard indicates the dewclaws should remain.

A Great Pyrenees dog that has had their dew claws removed cannot be shown under AKC standards even if the dog conforms in every other way.

Other Reasons Why You Do Not Want to Remove Great Pyrenees Dew Claws

The number one reason you don’t want to remove your Great Pyrenees dog’s dew claws doesn’t even have anything to do with wanting to show your dog in AKC dog competitions.

It is because it is simply not necessary.

There is no purpose for removing bony dewclaws because these digits present no immediate health risk (certainly no more than any other digits on your dog’s feet) and they are integral to the structure of your dog’s paws.

As Carolina Great Pyrenees Rescue points out, while many canine veterinarians downplay the invasiveness of this surgery, it is actually a major surgery.

And it is totally unnecessary as long as there are no other underlying health issues prompting concern over the presence of a Great Pyrenees dog’s dewclaws.

The surgery requires the amputation of both dew claw toes from each hind paw. This means disconnecting the nerves, muscles, and tendons as well as cutting the bone that attaches the dewclaws to the rest of the dog’s foot structure.

Once there is a structure missing in the paw, the rest of the foot is then forced to compensate. A lot of healing needs to take place inside the paws. The entire structure of the paw must regroup and reposition itself to work without the missing toes.

When dew claw amputation surgery is done before the Great Pyrenees dog is done growing up, the risk increases yet again.

The Great Pyrenees is a true giant dog breed and these puppies grow up slowly. They need to pace their growth over a period that can stretch from 18 months to up to four years to avoid putting undue pressure on their bones and internal structures.

When a breeder or veterinarian chooses to remove the dewclaws in puppyhood, this can impact how the paw grows and develops as the dog grows up. In more than a few cases, the dog will grow up to have lifelong issues because of the early amputation.

When Is It Okay to Remove a Great Pyrenees Dog’s Dew Claws?

The choice to leave or remove a dog’s dew claws is still considered a breeder or owner choice right now. It is something that some breeders will do and other breeders will not do.

With the Great Pyrenees dog breed, removal of dewclaws is much less common because the Great Pyrenees Club of America has decided to include intact dewclaws in the official show dog breed standard.

This is a boon to Great Pyrenees dogs and their owners because it minimizes the likelihood that a breeder or veterinarian or owner will choose to have the optional dewclaw removal surgery performed on a puppy or adult dog.

However, as PetMD points out, there may actually be times when it is medically smart to remove a dog’s dewclaws.

Dewclaws are basically canine toes. They have the same basic structure as toes, with bones on the inside and a sharp claw on the outside. Whenever you are considering amputation of dewclaws, treat it like you would be removing one of your own toes.

So here are some reasons why a Great Pyrenees owner might actually choose to remove one or more dewclaws.

Ingrown dewclaw nail

Sometimes the nail on a dewclaw can become ingrown. This is not unlike what you might experience when your own nail becomes ingrown.

However, since your own nails are not covered in thick fur, you will usually notice the issue much sooner and take steps to correct it.

Since your dog can’t tell you in words that the claw has become ingrown and is starting to hurt, it may take you until the dewclaw itself has become swollen, inflamed, or infected and your dog has become lame to notice.

In this case, depending on the case and your dog’s age, your veterinarian may choose to try a treatment or may remove the dewclaws. Obviously, this is an incredibly individual decision that should be approached on a case-by-case basis.

Dewclaw keeps getting caught

In some cases, dog owners report that their dog’s dewclaws are continually getting caught while the dog is out playing or working or just being a dog.

While the dewclaws are present from birth in a purebred Great Pyrenees and were originally quite useful to help these herding and protection dogs stay balanced and stable while doing their job guarding sheep on uneven and sometimes steep terrain.

But if you have different terrain on your property and your dog’s dewclaws are getting perpetually caught on underbrush, tree debris, rocks, or textured terrain, eventually, the recovery time after each treatment may begin to impact your dog’s quality of life.

Here again, this is an incredibly individual decision and should only be undertaken when the payoff to your dog’s health and quality of life is substantially improved by removing the dewclaws.

Dewclaws develop serious dystrophy or disease

The term dystrophy basically means disorders that affect the nail, claw, and surrounding toe in canines and other animals.

Dewclaws can develop a variety of diseases ranging from fungal or bacterial infection all the way to tumors and bone cancer. Sometimes amputating the affected dewclaw may actually prevent the spread of cancer to other areas of the dog’s body.

As Whole Dog Journal explains, sometimes health issues that affect the claw (nail) will spread to the soft tissue and skin surrounding the nail.

Sometimes a persistent infection can be a symptom of deeper health issues with the thyroid or endocrine system or an autoimmune disease.

Persistent swelling or inflammation, pain, infection, and redness can also be an early warning sign of canine cancer. This is much more common in older dogs.

How to Check Your Great Pyrenees Dog’s Dew Claws

At WSU Veterinary Medicine clinic explains, the dewclaws do not touch the ground like the other claws.

This means they don’t get worn down naturally as the other claws do. So you will definitely want to check and clip the dewclaw nails to prevent them from growing too long and either getting caught on something or actually growing into the dog’s ankle.

You will also want to trim the hair around the dewclaws so it is easier to check and trim them.

The best way to learn is to ask your veterinarian or your dog’s groomer to show you.

Leave a Comment

Your email address will not be published. Required fields are marked *

*