White tongue in dogs may be caused by anemia, gastrointestinal diseases, etc. It is best to take the dog to the pet hospital for examination in time to confirm the cause and then provide targeted treatment. During this period, adjust the dog's diet and try to feed the dog light, easy-to-digest food. You can also feed the dog nutritional paste, goat milk powder, etc. to help the dog supplement nutrition, and regularly deworm the dog to promote the healthy growth of the dog.