Some dogs will start biting when they grind their teeth. You can buy some toys such as dog chewing gum for dogs to bite. Some dogs are lonely because their owners don't care. Without their owners to play with them, they start to bite at random, which seems to show a kind of resistance. In this case, you should spend more time with your dog. The dog feels the care of its owner, and the owner will play with her. Slowly, the dog won't bite himself. Other dogs are naughty by nature and like to do a little damage. At this time, you should say "don't do this" to him in a harsh tone. Although the dog can't understand human language, it can distinguish human tone and respond accordingly. You can let the dog look at what he is going to break, pat the dog on the head, severely criticize the dog and tell him not to do this. Slowly, the dog will understand.

In short, you should pay more attention to your dog baby and spend more time with her. Dogs will be much better at biting, and they will never bite again.