Tetanus does not usually cause vasculitis. Tetanus is a specific acute infectious, toxic disease caused by Clostridium tetani infection. For example, deep, narrow wounds formed by rusty nails are prone to tetanus. Prompt debridement and injection of tetanus antitoxin are required. Even if Clostridium tetani enters the bloodstream, it mainly acts on the nerves, causing spasms in the muscles innervated by the corresponding nerves, and generally does not cause vasculitis. Vasculitis can occur for many reasons, such as serum sickness, metabolic reactions after medication, viral hepatitis, etc. It is mainly due to the destruction of the vascular structure, damage to the wall of the blood vessel, and may also cause the corresponding blood vessel blood organs or tissues due to insufficient blood supply and necrosis.