A two-year-old baby’s hand scratched by a cat needs immediate medical attention, disinfection, bandaging, suturing and other treatments according to the condition, and timely injection of rabies vaccine and tetanus vaccine. Cats are high-risk animals for spreading rabies virus, and a two-year-old baby’s hand scratched by a cat is in an exposed state, susceptible to rabies virus infection, and the wound is a high-risk wound for tetanus, which is very likely to cause life-threatening injuries to the baby. Therefore, when the hand is scratched by a cat, it is necessary to go to a regular hospital immediately, so that the professional doctor can clean and disinfect the wound. If the wound is too large or bleeds a lot, it is necessary to suture and bandage the wound, and after the general treatment, it is immediately injected with rabies vaccine and tetanus vaccine for a full course of treatment. When spending time with domestic pets or stray animals, you need to protect yourself from scratches and bites, and avoid contact with wild animals in a wild environment.