It is usually normal for dogs to stick out their tongues while sleeping. This is because dogs are in an extremely relaxed state, so they will stick out their tongues unconsciously. Secondly, if the indoor temperature is relatively high or the dog has exercised strenuously before going to bed, the dog will also stick out its tongue to dissipate heat. This situation can be relieved by feeding the dog water. In addition, if the dog sticks out its tongue for a long time since childhood, it may also suffer from hanging tongue syndrome. The specific information can only be found through examination.

1. Relaxation

When the dog feels at ease and comfortable in the living environment and is in an extremely relaxed state, the dog will stick out its tongue unconsciously. This is a normal phenomenon, so the owner No need to worry too much.

2. Heat dissipation

Dogs’ sweat glands are not well developed and they mainly dissipate heat through their tongues and foot pads. Therefore, when the indoor temperature is relatively high or there has been strenuous exercise before going to bed, the dog will Stick out your tongue to dissipate heat. If this is the case, the owner can lower the temperature by lowering the temperature of the dog's environment and giving the dog water to drink.

3. Hanging tongue syndrome

If a dog often sticks out its tongue from childhood to adulthood, it may suffer from hanging tongue syndrome. Dogs with the disease often cannot control their tongue. The tongue sticks out for a long time, which not only affects the dog's eating, but may also damage the tongue. Therefore, if the owner suspects that the dog has hanging tongue syndrome, it is best to take the dog to the pet hospital for examination and treatment in time.