The main reasons why dogs suddenly attack people:

1. Territorial awareness: Dogs are territorial animals and are naturally vigilant and will protect their territory. , and went to war with the invaders.

2. It may have rabies: If the pet owner finds that the dog’s eyes are red, straight, and drooling, it is very likely that it has rabies.

3. Conditioned reflex: Animals have the instinct of self-protection. Many times dogs take the initiative to bite people, mainly because they feel that danger is approaching.

4. Injury and pain: When a dog is injured or sick, he is very vigilant. If someone he does not approve of approaches him, he will bite in order to protect himself.

What to do if a dog suddenly attacks people:

1. Stand still and don’t run. When the dog barks at you, don’t run, otherwise it will If the dog's desire to catch is aroused, humans will not be able to outrun the dog, and they will not be able to escape the fate of being bitten.

2. Distract the dog’s attention and escape in time. The dog’s concentration is not that good and it is easy to be attracted by other things.

3. Shout loudly to people nearby. When you are alerted by a dog barking on the road, don’t panic. It is easy to do something wrong if you panic. You can shout loudly at this time. , ask for help.