Hydrogen peroxide can kill the tetanus bacillus in the wound, but it cannot completely kill the tetanus spores. Tetanus bacillus is a kind of anaerobic bacteria, widely exist in nature, usually in the anaerobic environment to survive, if the anaerobic environment is destroyed, this bacteria can not survive. If the anaerobic environment is destroyed, the bacteria can not survive. Hydrogen peroxide can quickly decompose into water and oxygen in the air, which can destroy the anaerobic environment, inhibit the reproduction and growth of tetanus bacillus, and achieve the effect of killing tetanus bacillus, therefore, once a wound is infected with tetanus bacillus, it can be disinfected by using hydrogen peroxide cleaning. However, because the wound area may have residual tetanus spores, it is necessary to inject tetanus vaccine at the same time as using hydrogen peroxide to achieve the effect of double prevention.