The possibility of rabies infection from a small scratch by a pet dog should be taken seriously by the patient. However, since the virus is mostly present in the animal and its survival time on the nail is very short, it is extremely unlikely that the patient will contract rabies when the scratch alone is small and the wound is small. Pet dogs are a common source of rabies infection, and even if a pet dog is regularly vaccinated against rabies, it is not possible to determine whether its paws were carrying the rabies virus before causing the injury. Since the skin scratched by a pet dog is a secondary exposure to rabies, there is a risk of rabies infection, and there is no better treatment for rabies, which can often be life-threatening if it develops, so patients need to pay sufficient attention. The wound should be treated promptly, such as repeatedly rinsing the wound with plenty of soapy water and running water for more than 15 minutes, then carefully disinfecting the wound with iodophor to prevent infection, and then dressing it with clean gauze and going to the nearest vaccination station for rabies vaccination. Patients should note that treated wounds need to avoid water and contact with irritating objects to avoid infection or aggravation of discomfort.