Overview
Tetanus bacteria live in soil and enter through cuts, punctures, or burns.
Symptoms usually start 3 to 21 days after injury.
Symptoms
Common signs:
- Jaw stiffness
- Muscle spasms
- Trouble swallowing
- Jaw pain, clicking, or teeth clenching
Look up a symptom: Cut or puncture wound · Jaw pain, clicking, or teeth clenching · Muscle cramp or charley horse · Neck pain or stiffness
When to get medical care
Causes
Clostridium tetani.
Does it spread or run in families?
- It usually doesn't spread from person to person.
- People get it from: wounds.
Who is more likely to get it
- Unvaccinated
Possible complications
- Broken bones: Very strong spasms can break bones
- Pneumonia: From trouble breathing and swallowing
Diagnosis
This is diagnosed in the emergency room or hospital.
The exam
A physical exam.
Tests
Tests, if needed:
- Exam:
Treatment
Emergency care is needed. While waiting for help:
Self-care
- Call 911
Prevention
To lower your risk or catch problems early:
- Tetanus shots
Which doctor treats this
- Emergency doctors treat it first, in the ER.
- They may send you to an infectious disease specialist, for hard-to-treat infections.
Back to school, work, or sports
- Recovery time varies. Ask your care team when you can drive, lift, work, and exercise.
Children, pregnancy, and older adults
- Older adults: Often behind on boosters.
Pregnancy and breastfeeding
- If you're pregnant or planning to be, tell your prenatal provider about this condition.
- Some infections can pass to the baby during pregnancy or birth. Tell your provider if you've been exposed.
- Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
- Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
- Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.
For caregivers
- Go to visits when you can and take notes.
- Keep a list of medicines, allergies, and doctors in one place.
- Learn the warning signs that need fast care.
- Learn CPR. Many hospitals and the Red Cross offer classes.
- Take breaks and ask for help. Caregivers need care too.
Outlook
Vaccines prevent it.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- What follow-up care do I need?
- How can I prevent this from happening again?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Sources
Last updated 2026-11-12.