Seeing a dog with their tongue sticking out is cute, especially when puppies do it. Most of the dogs we see competing in the World’s Ugliest Dog competitions always seem to have their tongue hanging out between their teeth. However, a dog’s tongue sticking out all the time could be a condition called hanging tongue syndrome, and it can cause the dog pain. Hanging tongue syndrome isn’t life threatening in itself, but it could indicate something is wrong.
A dog’s tongue is quite remarkable when you think about it. They use it to drink water, help keep themselves cool and to clean their coat and feet. Plus, most dogs aren’t shy when it comes to giving us a warm, sloppy kiss when they feel we need one.
How the tongue helps cool the dog is simple, yet effective. When dogs get hot while playing or exercising, they pant to cool down. The blood vessels in the tongue swell because of increased blood flow to the tongue. As the dog pants, moisture is created by their breath which evaporates and cools the tongue. As the tongue cools down, the blood flow is cooled and this goes throughout the dog’s respiratory system, cooling his entire body.