The reasons why dogs grind their teeth:

1. When a dog is in the period of tooth replacement and his teeth are itchy, he will grind his teeth. You can prepare a teeth grinding stick or teeth grinder for your dog. snack.
2. When a dog is infected with parasites, it will also cause it to grind its teeth. The owner must deworm the dog in time.
3. When a dog eats too much, resulting in indigestion and teeth grinding, the dog can be fed an appropriate amount of probiotics to regulate the stomach.
4. When dogs dream, they may also grind their teeth. This may be caused by factors such as anxiety, stress, etc., which cause the nervous system to be in a state of tension.
5. When a dog is angry, he will also grind his teeth to express his anger and dissatisfaction.