A dog's sudden change in temperament and biting may be caused by stimulation, fright, threat, or infection with rabies virus. If the dog is afraid of water and light, it is more likely to get rabies. The dog should be sent to the pet hospital for examination in time. If there are no other abnormalities, then it is stimulated by the outside world. It is best to let the dog calm down for a while. Don't let your dog get any more stimulation.

Tip:

To avoid a sudden attack by a dog, protect yourself first and wait for the dog to calm down before trying to interact with the dog. During this period, try to Do not take your dog out to avoid frightening the dog.