A tetanus shot is a tetanus vaccine. Tetanus shots for adults do not need to be given in the buttocks. The tetanus vaccine is used to prevent the bacterium Clostridium tetani from invading the body through wounds in the skin or mucous membranes, which can lead to infection. Vaccination is usually given by intramuscular injection in the upper arm, not in the buttocks. Tetanus is a specific infection associated with wounds, and all types and sizes of wounds can be contaminated. Usually only one injection is needed if the wound is small and the reaction time to the injection is rapid. The injection can be given at your local hospital. As tetanus is a serious disease and has a high mortality rate. Therefore, if you have an open deep wound or a firearm injury, you should go to the nearest hospital immediately. You should immediately go to the nearest hospital for wound treatment and get a tetanus shot in time to avoid serious consequences.