Tetanus is primarily diagnosed clinically, based on characteristic symptoms such as muscle stiffness, spasms, and a history of a recent wound or injury. There are no specific laboratory tests that definitively confirm the infection, although supportive tests like wound cultures can identify Clostridium tetani. Blood tests are generally used to assess overall health and detect complications rather than confirm tetanus. Early recognition through clinical evaluation is critical, as prompt treatment significantly improves patient outcomes.