https://www.chewy.com/education/dog/training-and-behavior/why-is-my-dog-staring-at-the-wall
If your dog is staring at a wall, the explanation could lie in their heightened senses, which are far sharper than ours. Dogs have an extraordinary sense of hearing, capable of detecting higher pitched sounds that humans can not, like neighborhood noises or even the scurrying of rodents behind walls.
Their sense of smell, which is roughly 100,000 times better than ours, could also be picking up scents you can not detect. Additionally, some dogs may be reacting to visual “floaters” in their eyes or even the reflection of light patterns on the wall.
If this behavior becomes persistent or excessive, however, it could be a sign of a medical issue like a brain tumor, seizures, compulsive disorder, or Canine Cognitive Dysfunction (CCD).
While some owners may joke about their dogs sensing ghosts, there is no scientific evidence to support the claim that dogs can see spirits. However, dogs' heightened awareness of their environment might make them more sensitive to changes that go unnoticed by humans.
If your dog’s wall staring continues or is accompanied by other behavioral changes, it is essential to consult your veterinarian so they can perform tests to rule out medical causes and suggest strategies to redirect your dog’s attention.
Chewy editorial team recommends keeping a close eye on your dog’s behavior and seeking professional advice if you are concerned.
