The tetanus vaccine protects people who may come into contact with the bacteria that cause tetanus. As with any vaccine, the tetanus shot can lead to the possibility of some side effects.

The first symptom is usually jaw stiffness, which is why tetanus is sometimes referred to as "lockjaw." Other symptoms include neck stiffness, difficult swallowing, stiffness in abdominal muscles ...

The tetanus shot is such a vaccine. Tetanus is a disease caused by toxins created by the bacteria Clostridium tetani. The vaccine conditions the body's immune system to eliminate these toxins.