Tetanus is widely used clinically and is known as tetanus antitoxin, intended solely to prevent the clinical symptoms caused by infection with Clostridium tetani. Therefore, a skin test must be conducted before administering tetanus injections. The common skin test involves creating a skin wheal intradermally; if the skin test is negative, one can proceed with the tetanus antitoxin injection. The injection can be administered intramuscularly or subcutaneously. For example, the common sites include the deltoid attachment area on the upper arm for subcutaneous injections, and the deltoid or the lateral part of the buttock for intramuscular injections, among others. These are the injection sites for tetanus.