If a pet dog scratches the skin a little, this is a secondary exposure to rabies, and secondary exposure also carries the risk of being infected with rabies. However, if it is a pet dog and the pet dog is regularly vaccinated against rabies, that is, it has received a shot at three months of age and will be vaccinated annually in the future, the pet dog can be considered as not carrying the rabies virus and there is no need to worry about the transmission of rabies if the skin is scratched at this time. If the dog has not been regularly vaccinated against rabies, there is a risk of rabies transmission to people because the dog may also carry the rabies virus and scratching the skin is a secondary exposure and appropriate precautions should be taken for people. The wound of the broken skin is cleaned, then disinfected, and then go to the nearest vaccination station to inject rabies vaccine, the entire injection of rabies vaccine requires five shots, and some can only inject four shots.