If you have ever rubbed your dog's belly and wondered whether that small bump or scar is a belly button, the answer is yes. Dogs are mammals, and like humans, they develop an umbilical cord connection to their mother before birth — which leaves a navel scar after the cord falls off.
Do dogs have belly buttons
A dog's belly button is the scar left after the umbilical cord detaches in the first days after birth. In most dogs it looks like a small flat or slightly raised spot on the midline of the belly, often between the rib cage and pelvis.
It is usually harder to see than a human navel because of fur and because many dog belly buttons are flat rather than an obvious inset.
Common reasons
Umbilical cord at birth: puppies are connected to the placenta through the cord, which is clamped or chewed off shortly after birth.
Healing scar: the cord site closes and becomes a small scar — the belly button — over the first week or two of life.
Individual variation: some belly buttons are barely visible; others are slightly raised. Coat color and length affect how easy they are to spot.
Related question — umbilical cords: dogs do have umbilical cords as fetuses, but owners do not see the cord itself after the puppy is born and the site heals.
Normal vs concerning behavior
What owners can do
Gently part the fur on your dog's mid-belly to look for a small scar — often easiest to find when your dog is relaxed on their back.
Note any lump at the navel during regular belly rubs or grooming. A stable, tiny scar needs no treatment.
Mention any new or changing belly lumps at your dog's next veterinary visit.
When to call a vet or trainer
Contact your veterinarian if you notice a soft bulge at the belly button, discharge, redness, or a lump that grows or appears in an adult dog. Umbilical hernias sometimes need surgical repair.
A trainer is not needed for belly button questions unless you are working on cooperative handling for vet exams.