After being scratched by a cat, the following treatment must be done: 1. The wound must be strictly disinfected, usually with hydrogen peroxide and saline, after repeatedly cleaning the wound, and then coated with iodophor. It must be noted that the cat’s paws are likely to harbor rabies virus and tetanus bacillus, so try not to bandage the wound. Because these two viruses are predominantly anaerobic bacteria, it is difficult to grow and multiply on a wound that is easily accessible to oxygen. So avoid bandaging so that the wound is exposed to more oxygen to prevent infection of these two germs.2. It is necessary to go to the hospital for rabies vaccination to prevent infection of rabies virus.3. If the wound is deep, it is also recommended to inject tetanus antitoxin to prevent infection of tetanus bacillus.4.