Generalized tetanus, caused by the tetanospasmin toxin from Clostridium tetani, remains a health issue in rural areas with low vaccination coverage. This case describes a 38-year-old man from Oaxaca, Mexico, who developed this infection. Treatment included antitetanus immunoglobulin, broad-spectrum antibiotics, invasive mechanical ventilation, and sedoanalgesia. After 14 days in the intensive care unit (ICU), the patient showed favorable progress. This case underscores the importance of an integrated, multidisciplinary approach aligned with best documented practices. Early administration of immunoglobulin and antibiotics was crucial for recovery, as well as the use of mechanical ventilation and tracheostomy to manage respiratory complications. Improving healthcare infrastructure and vaccination coverage in rural areas is essential to effectively prevent and treat tetanus and other preventable diseases.