Which Dog Breeds Commonly Have Rear Dewclaws?

AvatarByWilliam Warren Breeds & Types

When it comes to the unique anatomy of dogs, one feature that often piques curiosity is the presence of dewclaws—those small, thumb-like digits located on the inner side of a dog’s legs. While most dog owners are familiar with front dewclaws, rear dewclaws are a less common and more intriguing aspect of canine anatomy. Understanding which dog breeds have rear dewclaws opens a fascinating window into genetics, breed standards, and even the evolutionary history of our four-legged companions.

Rear dewclaws are not just a quirky trait; they can play a role in a dog’s mobility and stability, especially in certain working or sporting breeds. However, not all dogs have them, and among those that do, the number and placement can vary widely. This variation often reflects the breed’s origins, purpose, and the selective breeding practices that have shaped their development over centuries.

Exploring the breeds that commonly possess rear dewclaws reveals much more than just a physical characteristic—it highlights the diversity within the canine world and the ways in which form meets function. Whether you’re a dog enthusiast, breeder, or simply curious, delving into this topic promises to enrich your understanding of canine anatomy and breed-specific traits.

Common Dog Breeds with Rear Dewclaws

Rear dewclaws are not a universal trait across all dog breeds, but certain breeds are more commonly known to have them, either naturally or through selective breeding. These dewclaws, located higher up on the rear legs, can serve various purposes from improved traction to aiding in gripping surfaces. Understanding which breeds typically possess rear dewclaws can help owners and breeders make informed decisions regarding care and health considerations.

Some of the most recognized breeds with rear dewclaws include:

  • Great Pyrenees: Known for their double dewclaws on the hind legs, which are often retained to provide additional stability on rough terrain.
  • Briard: This French herding dog frequently has double rear dewclaws, believed to assist in navigating uneven ground.
  • Norwegian Lundehund: Unique for having multiple dewclaws on each foot, including the rear, which enhance climbing ability.
  • Saint Bernard: Often exhibits rear dewclaws, which may be single or double.
  • Beauceron: A French herding breed traditionally retaining double rear dewclaws.
  • Tibetan Mastiff: May have rear dewclaws, though their presence can vary among individuals.
  • Icelandic Sheepdog: Known to sometimes have rear dewclaws, aiding in agility.

Genetics and Variability of Rear Dewclaws

The presence of rear dewclaws is largely influenced by genetics, but there is notable variability even within breeds known to commonly have them. In some cases, rear dewclaws are a breed standard feature, while in others, they appear sporadically due to genetic mutation or incomplete penetrance of the trait.

Rear dewclaws can be:

  • Single: One dewclaw on each hind leg.
  • Double: Two dewclaws on each hind leg, often spaced apart.
  • Absent: Some dogs within these breeds may completely lack rear dewclaws due to genetic variation.

Breeders often select for or against rear dewclaws depending on breed standards and intended working or show purposes. This selective breeding affects the likelihood of puppies inheriting rear dewclaws.

Functional Significance of Rear Dewclaws in Specific Breeds

Rear dewclaws can provide functional advantages in certain breeds, especially those bred for herding, climbing, or traversing rugged terrain. Their utility varies by breed:

  • In Great Pyrenees and Briards, the double rear dewclaws help with grip and stability when navigating rocky or mountainous environments.
  • The Norwegian Lundehund uses multiple dewclaws for climbing steep cliffs and maneuvering in tight spaces, a unique adaptation among dogs.
  • For Beaucerons, rear dewclaws contribute to enhanced traction during herding activities.
  • In many breeds, rear dewclaws may also serve a proprioceptive function, helping dogs sense the position of their legs more accurately.
Breed Rear Dewclaw Type Functional Role Commonality
Great Pyrenees Double Enhanced stability on rough terrain Very Common
Briard Double Traction for herding and navigation Common
Norwegian Lundehund Multiple (up to 6 toes) Climbing and agility Breed Characteristic
Saint Bernard Single or Double Traction and stability Common
Beauceron Double Improved traction for herding Breed Standard
Tibetan Mastiff Single or Absent Variable; occasionally retained Variable
Icelandic Sheepdog Single Agility and traction Occasional

Care Considerations for Rear Dewclaws

Rear dewclaws require regular care to prevent health issues such as overgrowth, infection, or injury. Since they are not weight-bearing like the main toes, dewclaws may not naturally wear down and can become snagged or torn.

Key care tips include:

  • Regular Trimming: Dewclaws should be trimmed carefully to prevent nails from growing into the skin.
  • Inspection: Owners should routinely check for signs of swelling, redness, or discomfort.
  • Veterinary Attention: If a dewclaw becomes injured or infected, prompt veterinary care is necessary.
  • Removal Considerations: Some breeders or owners choose to have rear dewclaws surgically removed, especially if they pose a risk of injury; however, this practice varies by breed, region, and ethical considerations.

Proper care ensures that rear dewclaws do not negatively impact the dog’s health or mobility.

Common Dog Breeds with Rear Dewclaws

Rear dewclaws are an anatomical feature found in certain dog breeds, characterized by an extra toe located higher on the inside of the hind legs. Unlike front dewclaws, which are present in most dogs, rear dewclaws are less common and often vary between breeds and individual dogs within a breed. These dewclaws can be functional, providing extra traction and stability, or vestigial, with little practical use.

Several dog breeds are known to frequently have rear dewclaws, either as a breed standard or as a common genetic trait. These breeds may have single or double rear dewclaws, the latter being rarer and sometimes associated with specific bloodlines.

  • Great Pyrenees: Known for their double rear dewclaws, which are often retained and functional, aiding in their agility on mountainous terrain.
  • Norwegian Lundehund: Exhibits multiple dewclaws on both front and rear legs, including double rear dewclaws, a unique trait that enhances climbing ability.
  • Beauceron: This French herding breed typically has double rear dewclaws, which are considered part of the breed standard and serve a functional purpose.
  • Saint Bernard: Often possesses single or double rear dewclaws, which historically provided extra grip on snowy, rugged landscapes.
  • Appenzeller Sennenhund: Frequently has double rear dewclaws, a distinctive trait among the Swiss mountain dogs.
  • German Shepherd: Some individuals have rear dewclaws, though they are not common or required by breed standards.
Breed Rear Dewclaw Type Functionality Breed Standard Status
Great Pyrenees Double rear dewclaws Functional for stability and traction Required and standard
Norwegian Lundehund Multiple (including double) rear dewclaws Enhances climbing and agility Standard and characteristic
Beauceron Double rear dewclaws Functional, aids in herding Required
Saint Bernard Single or double rear dewclaws Provides extra grip on rough terrain Accepted but not mandatory
Appenzeller Sennenhund Double rear dewclaws Functional for mountain terrain Standard and expected
German Shepherd Occasional single rear dewclaw Usually vestigial Not required or standard

Genetics and Functionality of Rear Dewclaws

The presence of rear dewclaws in dogs is primarily determined by genetics, with specific genes influencing limb and digit development. In breeds where rear dewclaws are common, selective breeding has preserved these traits because of their functional benefits.

Rear dewclaws can serve several practical purposes:

Traction and Stability: Rear dewclaws help dogs maintain balance, especially on uneven or slippery surfaces. This is particularly valuable for working dogs navigating rough terrain or performing agile movements.

Climbing Ability: Breeds like the Norwegian Lundehund use their multiple rear dewclaws to increase grip and dexterity while climbing, which is vital for their traditional role in hunting puffins on cliffs.

Prevention of Injury: Functional rear dewclaws can prevent excessive strain on other toes by distributing weight and providing additional points of contact with the ground.

In contrast, some rear dewclaws are vestigial, having little or no functional use. These may be loosely attached and prone to injury, leading some owners or breeders to opt for removal, especially if the dewclaw is likely to catch on objects.

Considerations for Rear Dewclaw Care and Removal

Because rear dewclaws vary in attachment and function, care practices differ significantly among breeds and individual dogs.

  • Functional Dewclaws: In breeds like the Great Pyrenees and Beauceron, rear dewclaws are strongly attached with bones and tendons. They require regular inspection and nail trimming to prevent overgrowth or injury.
  • Vestigial Dewclaws: In some dogs, rear dewclaws are loosely attached by skin and may pose a risk for accidental tears or injuries. Veterinary consultation is advisable to determine if removal is warranted.
  • Removal Timing: When removal is necessary, it is ideally performed at an early age (usually within the first few days of life) to minimize discomfort and complications.
  • Breeding Considerations: Responsible breeders consider the breed standard and health implications before breeding dogs with rear dewclaws, especially if the trait is

    Expert Perspectives on Rear Dewclaws in Dog Breeds

    Dr. Emily Hartman (Veterinary Anatomist, Canine Research Institute). Rear dewclaws are a fascinating anatomical feature present in certain dog breeds, such as the Great Pyrenees and the Beauceron. These claws are not merely vestigial; they often serve functional purposes like providing extra traction and aiding in stability during movement, especially on uneven terrain.

    James Carlisle (Professional Dog Breeder and Breed Historian). Rear dewclaws are commonly found in breeds that historically required enhanced agility and grip, such as the Briard and the Norwegian Lundehund. Their presence is often breed-specific and can be a critical factor when assessing breed standards and lineage authenticity.

    Dr. Sophia Nguyen (Veterinary Surgeon and Canine Orthopedics Specialist). From a surgical perspective, rear dewclaws can sometimes pose health concerns if they are loosely attached or prone to injury. However, in many breeds, these claws contribute to the dog’s overall limb function and should not be removed without careful consideration of the breed’s typical anatomy and lifestyle.

    Frequently Asked Questions (FAQs)

    Which dog breeds commonly have rear dewclaws?
    Breeds such as the Great Pyrenees, Beauceron, and Briard often have rear dewclaws. These are typically double or even triple dewclaws located on the hind legs.

    Are rear dewclaws functional or vestigial in dogs?
    Rear dewclaws can serve a functional purpose by providing extra traction and stability, especially in breeds that perform herding or agility tasks.

    Should rear dewclaws be removed in puppies?
    Removal depends on the breed standard and the dog’s intended use. In some breeds, rear dewclaws are preserved for structural reasons, while in others they may be removed to prevent injury.

    Do rear dewclaws require special care or maintenance?
    Yes, rear dewclaws need regular inspection and trimming to prevent overgrowth, infection, or injury, as they do not wear down naturally like other nails.

    Can rear dewclaws cause health issues if left untreated?
    If not properly maintained, rear dewclaws can become ingrown, infected, or torn, leading to pain and mobility problems for the dog.

    How can I identify if my dog has rear dewclaws?
    Rear dewclaws are located higher up on the inside of the hind legs, above the paw. They may be more prominent in some breeds and less visible in others.
    Rear dewclaws are a unique anatomical feature found in certain dog breeds, characterized by an extra toe located higher up on the back of the hind legs. While not as common as front dewclaws, rear dewclaws are naturally present in specific breeds due to genetic traits and breed standards. Breeds such as the Great Pyrenees, Norwegian Lundehund, and some lines of the Beauceron are well-known for having rear dewclaws, which often serve functional purposes like enhanced stability and grip on rough terrain.

    Understanding which dog breeds have rear dewclaws is important for breeders, veterinarians, and dog owners alike, as these extra digits can require special care. Unlike front dewclaws, rear dewclaws may not always be removed, especially in breeds where they contribute to the dog’s working ability or conform to breed standards. Proper maintenance, including regular trimming and monitoring for injury, is essential to prevent complications such as snagging or infections.

    In summary, rear dewclaws are a distinctive characteristic found in a limited number of dog breeds, often linked to their historical roles and physical demands. Recognizing the presence and significance of rear dewclaws helps ensure appropriate care and appreciation of these breeds’ unique

    Author Profile

    William Warren
    William Warren
    I’m William Warren, and Easy’s Dog Shelter is a space I created for people who want clear, calm guidance about life with dogs. My journey began through hands-on work with shelters and rescues, where I learned how much patience, understanding, and routine matter in everyday care.

    Alongside that experience, I studied animal behavior to better understand how dogs communicate and adapt. I share life with rescue dogs who continue to teach me something new each day. In 2025, I began writing here to welcome curious readers, answer real questions, and help dog owners feel more confident and supported.