Tetanus immune globulin injection can effectively prevent tetanus bacillus infection, but there is no 100% guarantee that the body will not be infected by tetanus at all after the injection. Generally speaking, within 24 hours after the injury, tetanus immunoglobulin injection is required, which can effectively prevent tetanus bacillus from infecting the wound. If the patient does not receive the tetanus immunoglobulin injection within the prescribed time, the immunization effect of the vaccine will be reduced, resulting in an increased risk of the organism being infected. If the patient has a large and deep wound with incomplete debridement, even if tetanus immunoglobulin is injected, the anaerobic environment may lead to bacterial growth and subsequent infection with tetanus bacillus. Although tetanus immunoglobulin injection is not 100% effective in preventing infection, it is still recommended to get tetanus immunoglobulin injection as soon as possible if the body is injured, and at the same time, thorough debridement should be carried out to minimize the risk of infection. It is advisable to consult a doctor for advice and treatment.