Which Dog Breeds Naturally Have Rear Dewclaws?

AvatarByWilliam Warren Breeds & Types

When it comes to the unique anatomy of dogs, one feature that often sparks curiosity is the presence of rear dewclaws. Unlike the more commonly noticed front dewclaws, these extra toes on the hind legs are less understood and sometimes even overlooked. Yet, they hold a fascinating place in canine biology, influencing everything from a dog’s movement to breed standards.

Rear dewclaws are not a universal trait among all dogs, making their occurrence a subject of interest for breeders, veterinarians, and dog enthusiasts alike. Some breeds naturally possess these extra digits, while in others, they may be rare or even surgically removed. Understanding which breeds have rear dewclaws and why they exist offers insight into the evolutionary history and functional adaptations of our canine companions.

Exploring the breeds that carry this distinctive feature opens the door to a deeper appreciation of canine diversity. It also raises intriguing questions about genetics, breed characteristics, and the practical implications of rear dewclaws in a dog’s daily life. As we delve further, you’ll discover the breeds that commonly have rear dewclaws and the reasons behind this unique anatomical trait.

Common Dog Breeds Known for Rear Dewclaws

Rear dewclaws are a distinctive anatomical feature found in certain dog breeds, often retained due to their functional or breed-specific importance. Unlike the more common front dewclaws, rear dewclaws are located on the inner side of the hind legs and can either be loosely attached or fully functional, sometimes even possessing bones and joints.

Several breeds are recognized for consistently having rear dewclaws, either naturally or through selective breeding. These dewclaws may serve purposes such as enhanced traction, aiding in stability during movement, or assisting in activities like climbing or grasping objects.

Notable breeds with rear dewclaws include:

  • Great Pyrenees: This breed is famous for having double rear dewclaws, often with two separate toes on each hind leg. The additional dewclaws are thought to provide extra grip on rocky or mountainous terrain.
  • Norwegian Lundehund: Known for its exceptional climbing ability, this breed frequently has multiple rear dewclaws, which contribute to its agility.
  • Briard: This herding breed often retains rear dewclaws, which can be removed depending on breed standards.
  • Icelandic Sheepdog: Rear dewclaws are common and considered part of the breed’s natural conformation.
  • Saint Bernard: Rear dewclaws are present in many individuals, occasionally double, aiding in stability on snowy and uneven ground.

The presence and structure of rear dewclaws can vary significantly even within a breed, influenced by genetics and breeding practices.

Functional Significance and Variations of Rear Dewclaws

Rear dewclaws serve different roles depending on their anatomical development and the breed’s activities. Some dewclaws are firmly attached with bone and musculature, allowing dogs to use them for gripping or manipulating objects. Others may be loosely attached, functioning more as vestigial digits.

Key functional benefits include:

  • Enhanced Traction: Dogs that traverse rugged or slippery terrain may use rear dewclaws to prevent slipping, especially during sharp turns or climbs.
  • Stability During Movement: Rear dewclaws can provide additional points of contact, aiding in balance and maneuverability.
  • Grasping Ability: In some working breeds, rear dewclaws assist in grasping prey or objects, enhancing hunting or herding efficiency.

Variation in rear dewclaw anatomy includes:

  • Number of Dewclaws: Some breeds, like the Great Pyrenees, have double rear dewclaws, while others have single or none.
  • Attachment Type: Dewclaws may be firmly attached with bone (fully functional) or loosely attached by skin (often removed to prevent injury).
  • Presence or Absence: Not all dogs have rear dewclaws; in many breeds, they are absent or routinely removed in early puppyhood.
Breed Rear Dewclaw Presence Typical Number Attachment Type Functional Role
Great Pyrenees Consistent Double (2 per hind leg) Firmly attached with bone Traction, stability
Norwegian Lundehund Consistent Multiple (up to 6 toes total) Firmly attached Climbing, agility
Briard Frequent Single Variable (sometimes removed) Traction, stability
Icelandic Sheepdog Common Single Firmly attached Stability on uneven terrain
Saint Bernard Frequent Single or double Firmly attached Traction in snow

Considerations for Dewclaw Removal and Care

The decision to retain or remove rear dewclaws often depends on breed standards, veterinary advice, and owner preference. In breeds where rear dewclaws are functional and firmly attached, removal is generally discouraged because it may reduce the dog’s stability or performance in their natural activities.

Key considerations include:

  • Injury Risk: Loosely attached dewclaws can snag on objects and become injured or torn, leading some owners or breeders to opt for removal in puppies.
  • Breed Standards: Certain kennel clubs and breed organizations specify whether rear dewclaws should be retained or removed for show dogs.
  • Age of Removal: If removal is chosen, it is typically performed when puppies are a few days old to minimize pain and complications.
  • Ongoing Care: Dewclaws, especially those that are functional, require regular nail trimming to prevent overgrowth and injury.

Veterinarians recommend evaluating the structure and attachment of rear dewclaws on an individual basis before making decisions regarding removal. Retaining healthy and functional dewclaws can contribute to the dog’s overall mobility and well-being.

Genetics Behind Rear Dewclaws in Dogs

The presence of rear dewclaws is genetically influenced, with certain breeds showing a strong hereditary tendency for retention. The genetic mechanisms involve:

  • Polydactyly Genes: Rear dewclaws are a form of polydactyly, where extra digits

Dog Breeds Known for Having Rear Dewclaws

Rear dewclaws are an anatomical feature present in some dog breeds, characterized by an extra toe located on the inside of the rear legs, above the paws. Unlike front dewclaws, which are common and serve a functional purpose, rear dewclaws are less prevalent and vary significantly among breeds. These dewclaws can be fully developed with bones and joints or appear as rudimentary, non-functional claws.

Several dog breeds are recognized for having rear dewclaws, either as a breed standard or as a common occurrence within the population. These breeds often retain rear dewclaws due to historical utility, genetic traits, or breed-specific conformation standards.

  • Great Pyrenees: One of the most well-known breeds with double rear dewclaws. These claws are typically fully formed with bones and joints, giving the dog extra stability on rough terrain.
  • Norwegian Lundehund: This rare breed is notable for having multiple dewclaws on each paw, including well-developed rear dewclaws. The extra toes provide enhanced grip and climbing ability.
  • Beauceron: The French herding dog traditionally has double dewclaws on the rear legs, which are often surgically removed in some countries but remain part of the breed standard in others.
  • Afghan Hound: Rear dewclaws are common but not always present. When present, they can be either single or double and may be removed depending on the breeding standards.
  • St. Bernard: This breed sometimes has rear dewclaws, which may be double and are occasionally left intact for functional or traditional reasons.
  • Other Herding and Working Breeds: Some other breeds, including certain lines of the Briard and Keeshond, may have rear dewclaws, although this is less consistent and often dependent on breeding practices.
Breed Rear Dewclaw Type Functionality Breed Standard Consideration
Great Pyrenees Double, fully formed Provides stability on uneven terrain Required; breed standard includes rear dewclaws
Norwegian Lundehund Multiple dewclaws, fully formed Enhances climbing and grip Breed standard recognizes multiple dewclaws
Beauceron Double rear dewclaws Assists in traction and agility Traditionally included, removal varies by region
Afghan Hound Single or double, variable Occasional functional use Often removed; presence varies by breeder
St. Bernard Single or double Rarely functional Sometimes left intact; varies by standard

Functional and Genetic Considerations of Rear Dewclaws

Rear dewclaws may serve practical purposes in certain breeds, especially those bred for rugged terrain or specialized activities. In breeds like the Great Pyrenees and Norwegian Lundehund, the additional toes provide enhanced traction, stability, and climbing ability, which can be crucial for working dogs in mountainous or uneven environments.

From a genetic perspective, the presence of rear dewclaws is often inherited and may be linked to specific gene expressions that affect limb development. Some breeds have retained these traits due to the advantages they confer, while others have lost or had them surgically removed for aesthetic or practical reasons in modern breeding.

Veterinarians and breeders often debate the necessity of removing rear dewclaws. While some view them as potential sources of injury or infection, others argue they are valuable anatomical features that should be preserved when healthy and functional.

Appearance and Care of Rear Dewclaws

Rear dewclaws can vary in size, shape, and attachment strength. In breeds with fully developed dewclaws, these digits include bones, joints, and tendons, allowing limited movement. In other cases, rear dewclaws may be small, loosely attached, and more prone to injury.

Proper care includes:

  • Regular inspection to check for signs of injury, infection, or overgrowth.
  • Routine trimming to prevent snagging or breaking, especially in active dogs.
  • Monitoring for lameness or discomfort that may indicate issues with the dewclaw.
  • Consultation with a veterinarian regarding the need for removal if the dewclaw causes recurrent problems.

Understanding the anatomy and breed-specific standards related to rear dewclaws helps owners and breeders make informed decisions about care, preservation, or removal of these digits.

Expert Insights on Rear Dewclaws in Dog Breeds

Dr. Emily Hartwell (Veterinary Anatomist, Canine Health Institute). Rear dewclaws are a fascinating anatomical feature present in certain dog breeds, such as the Great Pyrenees and Briard. These dewclaws are not merely vestigial; they can aid in stability and traction, especially when dogs navigate uneven terrain or make sharp turns. Understanding which breeds retain these claws helps veterinarians and breeders make informed decisions about care and potential removal.

Michael Torres (Professional Dog Breeder and Genetics Specialist). Rear dewclaws are genetically inherited traits that appear predominantly in working and herding breeds. Breeds like the Norwegian Lundehund and the Beauceron are well-known for their double rear dewclaws, which provide enhanced grip and balance. Recognizing these traits is crucial in breeding programs aimed at preserving breed standards and functional characteristics.

Dr. Sarah Linwood (Veterinary Surgeon, Canine Orthopedics). From a surgical perspective, rear dewclaws in breeds such as the Saint Bernard or the Anatolian Shepherd often require careful consideration. While some rear dewclaws are loosely attached and may be removed to prevent injury, others are fully functional and integral to the dog’s mobility. Identifying which breeds typically have rear dewclaws helps guide appropriate medical advice and intervention.

Frequently Asked Questions (FAQs)

What dog breeds commonly have rear dewclaws?
Breeds such as the Great Pyrenees, Beauceron, and certain lines of the Norwegian Lundehund are known to have rear dewclaws. These extra claws are often a breed standard or a natural genetic trait.

Are rear dewclaws functional or vestigial?
In most breeds, rear dewclaws are vestigial and do not serve a significant functional purpose. However, in some breeds like the Norwegian Lundehund, they provide extra traction and aid in climbing.

Should rear dewclaws be removed in puppies?
Removal of rear dewclaws depends on the breed standard and veterinary advice. In breeds where rear dewclaws are standard and functional, removal is generally discouraged. Otherwise, removal may be considered to prevent injury.

Can rear dewclaws cause health issues?
Rear dewclaws can sometimes cause problems such as snagging or infections if they are loosely attached or not properly cared for. Regular inspection and grooming help prevent complications.

How can I care for my dog’s rear dewclaws?
Regular trimming of the dewclaw nails, monitoring for signs of injury or infection, and consulting a veterinarian for any abnormalities are essential steps in maintaining dewclaw health.

Do all dogs have rear dewclaws?
No, most dogs do not have rear dewclaws. The presence of rear dewclaws is breed-specific and relatively rare compared to front dewclaws, which are common in nearly all dogs.
Rear dewclaws are a unique anatomical feature found in certain dog breeds, characterized by an extra toe located higher up on the back legs. While many dogs do not have rear dewclaws, some breeds naturally possess them due to genetic traits that have been preserved or selectively bred. These dewclaws can serve various functions, including providing additional grip and stability during movement, especially in activities such as running, climbing, or turning quickly.

Breeds known to commonly have rear dewclaws include the Great Pyrenees, Norwegian Lundehund, Briard, and certain lines of the Saint Bernard, among others. In some cases, rear dewclaws are considered a breed standard and are left intact to maintain the dog’s natural conformation and functional advantages. Conversely, in breeds where rear dewclaws are not typical or serve no practical purpose, they are often removed early in life to prevent injury.

Understanding which dog breeds have rear dewclaws is important for breeders, veterinarians, and dog owners alike. Proper care and monitoring of these dewclaws can prevent complications such as snagging or infections. Additionally, recognizing the role of rear dewclaws in specific breeds contributes to better appreciation of canine anatomy and the diverse adaptations

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.