Two dogs can have a different number of visible claws without either arrangement being a surprise to a veterinarian. Dewclaws sit higher than the main weight-bearing toes, and their presence and attachment can differ between front and hind legs and between dogs.
The American Kennel Club’s explanation of dewclaws describes the usual front dewclaw as firmly attached through the limb’s supporting structures. Rear dewclaws may have a different, looser attachment, and some breeds are known for double rear dewclaws. The visible nail does not, by itself, tell you everything beneath the skin.
Higher on the leg does not mean useless
A front dewclaw may not meet a flat floor during quiet standing, yet movement changes the position of the limb. The AKC describes possible roles in gripping an object and providing support or traction during particular movements. That is different from saying every dewclaw performs the same job to the same degree.
Watch an ordinary, comfortable activity rather than arranging a test. A dog holding a suitable chew between its front paws may show how the inside of the paw contributes to grip. There is no need to make a dog turn sharply or climb awkward terrain to demonstrate an anatomical point.
Ask a question about this dog
At a routine veterinary appointment, an owner can ask which structures are present and whether there is anything unusual about their attachment. This is especially useful if the dog’s coat obscures the area or its early history is unknown.
A simple record can distinguish “front left,” “front right,” “rear left” and “rear right.” Add only what the professional actually confirms. Do not infer a previous operation from an absent claw, or a medical problem from an additional one.
Breed descriptions are background information rather than an examination. A discussion about show standards also has a different purpose from a decision about an individual dog’s health. Any proposed removal needs a veterinary explanation of the indication, alternatives and implications; it should not follow automatically from calling a claw “extra.”
If there is pain, swelling, bleeding or persistent licking, arrange veterinary assessment. For a comfortable dog, the main lesson is one of observation: anatomy varies, position alone does not establish function, and the best explanation starts with the animal in front of you rather than a generic paw diagram.