Bleeding from rodent bites carries the risk of serious diseases such as tetanus and hemorrhagic fever, and should be taken seriously. However, rodents do not carry rabies virus, so rabies vaccination is not required. Mice can carry a variety of pathogens in their mouths, such as epidemic hemorrhagic fever virus, so there is a risk of hemorrhagic fever from a mouse bite. In case of illness, the patient may develop fever, peripheral discomfort, headache, lumbago, orbital pain, flushing of the face, etc. Subsequent bleeding, impaired kidney function, and even shock may occur, so timely and routine vaccination against hemorrhagic fever is needed to prevent infection. In addition, if the rat bite bleeding wound is deep, it is suitable for the growth and reproduction of anaerobic tetanus bacilli at this time, so the patient is recommended to receive a tetanus vaccine. After being bitten by a rat, the patient should immediately treat the wound, wash the wound repeatedly with water or soapy water, and then disinfect the wound with iodine and alcohol; more serious cases also need to do suturing and bandaging, and it is recommended to go to the hospital for surgery.