Dogs can have blue tongues

Well, even though it may sound crazy, this is actually true: dogs can have blue tongues. The reason why dogs have blue tongues is not yet scientifically known, but dogs with blue tongues come from breeds such as Chow Chows and Shar-Peis. In fact, they are genetically related. 

Unfortunately, it’s quite difficult for vets to consult dogs with blue tongues. Moreover, a blue tongue may indicate that they are not oxygenating well or it can be a sign of lung or heart disease. So, try to consult your vet for more info and a specialized check-up. 

“These animals are at a minor disadvantage in a veterinarian’s ability to assess health,” Hohenhaus says. “In a dog whose tongue is normally pink, a blue tongue tells us that they’re not oxygenating well.”