There is a risk of infection after being scratched by a mouse without a preventive vaccine, so it is recommended that patients receive the relevant vaccine promptly. If the wound is not deep after being scratched by a mouse, the probability of tetanus infection is usually low. If the wound is deeper and more suitable for the growth and reproduction of anaerobic bacteria, there may be a risk of tetanus infection. And since tetanus is a more serious infectious disease, it needs to be taken seriously and timely tetanus vaccination is recommended. After being scratched by rats, patients may be infected with epidemic hemorrhagic fever with symptoms such as fever, headache, orbital pain, back pain and skin flushing, and patients should be vaccinated against hemorrhagic fever as soon as possible to prevent more serious problems from occurring. After being scratched by rats, patients can first rinse the wound with water. If the scratch is serious, it needs to be disinfected and treated with iodophor to prevent bacterial infection, and then the relevant vaccine should be injected in time.