Rat bites need to be injected, mainly to prevent the three major diseases of renal syndrome hemorrhagic fever, tetanus and rabies. There are a variety of bacteria and viruses in the mouth of rats, the bite wound must be promptly and thoroughly cleaned to avoid bacterial infection, intramuscular injection of tetanus vaccine, no later than 24 hours; after being bitten by a rat may have a renal syndrome hemorrhagic fever, to immediately go to the hospital for injection of hemorrhagic fever vaccine; rats may carry rabies, but the likelihood of the onset is very small, generally do not carry out related treatment If you are not sure, the injured person can choose to inject rabies vaccine. After the above series of treatment, these diseases can usually be avoided, and the injured person needs to protect the wound to avoid further infection.