Hanging Tongue Syndrome
You know how much it hurts when your lips are dry and chapped, well now imagine how it would feel to have the end or part of your tongue always dry and cracked. That is exactly what dogs with hanging tongue syndrome have to deal with every day. Although many smaller breeds such as the Mexican Hairless, Chihuahua, Cavalier King Charles Spaniels and some of the brachycephalic breeds such as Pugs are most prone to the condition it can also be seen in larger breeds such as the German Shepherd.
The condition is caused by an injury or trauma to the jaw or muzzle, a neurological problem or an anatomical malformation that prevents the dog from pulling his or her tongue back into the mouth. Normally dogs will pant and even sit with their tongues hanging out to stay cool, but they do pull the tongue back in to swallow and to moisten the surface. [...]