Tetanus bacteria can enter the body through a wound or injury that breaks the skin. The bacteria produce a toxin that affects the nerves, leading to muscle stiffness and spasms. Wounds that increase the risk of tetanus include puncture wounds, deep cuts, animal bites, and burns. Tetanus can also occur after surgical procedures, dental work, or injections with contaminated needles. It is important to keep your vaccinations up to date to prevent tetanus infection.
