A dog that always barks may be due to reasons such as being unaccustomed to a new environment, nervous, lonely, missing its owner, wanting to go out to play, hungry, feeling unwell, or hearing noises outside the door. The actual situation of the dog needs to be determined. to judge. It is best to check whether there is any abnormality in the dog's body first. If not, don't worry, just stay with the dog more. If there is any abnormality, it is best to take the dog to the pet hospital for examination and treatment.