Tetanus: Understanding Infection & Prevention - CDC

Tetanus is caused by a bacterium that lives in soil, dust, and manure. These bacteria can enter your body through a wound, no matter how small. Deep wounds are more likely to cause tetanus, but it is still possible to get tetanus from a shallow wound.

Tetanus is a serious disease that can lead to muscle spasms, fever, and even death. If you have a wound, it is important to clean it and see a doctor if it is deep or if it becomes infected.