Tetanus is a strict anaerobic bacterium. Clinically, for deeper contaminated wounds, especially those contaminated by soil or punctured by rusty iron objects, an active injection of tetanus vaccine is recommended. Generally, for superficial scratches or clean and shallow wounds, as long as proper wound cleaning is performed, it is usually not necessary to administer a tetanus shot. For patients who have completed a full course of immunization or booster immunization within the last ten years and have high antibody levels in the body, if the wound is small, superficial, and free of foreign bodies or necrotic tissue residue, it is not necessary to inject the tetanus vaccine. For wounds that are larger, deeper, and heavily contaminated, with substantial residues of foreign bodies and necrotic tissue, or in cases where thorough wound cleaning is not achievable, an enhanced injection of tetanus antitoxin or immunoglobulin should be administered.