WebMD
Font Size
A
A
A

Tetanus

Tetanus (lockjaw) is a preventable but dangerous bacterial infection that causes muscle spasms, difficulty opening the mouth (lockjaw), difficulty swallowing, and seizures. Usually found in dirt and soil, tetanus bacteria typically enter the body through a wound or cut.

Tetanus bacteria thrive only in the absence of oxygen. The deeper and narrower the wound, the less oxygen is around it, and the greater the possibility of tetanus. For example, tetanus bacteria can thrive in a puncture wound from a dirty nail.

Following the recommended immunization schedule helps prevent tetanus. Before age 6, children receive a series of tetanus shots (DTaP). Then, adolescents and adults get regular tetanus booster shots.

A person who has a dirty cut or wound should get a tetanus shot as soon as possible if at least 5 years have passed since his or her last tetanus immunization.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.