Tetanus
A life-threatening neurologic disease caused by toxin-producing Clostridium tetani bacteria entering a wound; it does not spread from person to person.
What causes Tetanus?
Tetanus occurs when Clostridium tetani spores from soil, dust, or manure enter damaged tissue and produce toxin. Punctures, contaminated wounds, burns, crush injuries, injection-drug wounds, and rarely childbirth or surgery can provide entry.
Symptoms and what to notice
Jaw stiffness or lockjaw, painful muscle spasms, trouble swallowing, rigid abdominal or back muscles, fever, sweating, fast heart rate, and unstable blood pressure. Spasms may be triggered by light, noise, or touch.
How long can it last?
Symptoms usually begin 3 to 21 days after exposure. Illness often requires weeks of intensive care, and recovery can take months because nerve endings must regrow.
How serious is Tetanus?
Tetanus can cause airway obstruction, respiratory failure, aspiration, fractures from spasms, blood clots, pneumonia, cardiac instability, and death. Infection does not create immunity.
Treatment and management
Emergency treatment includes wound cleaning, human tetanus immune globulin, antibiotics such as metronidazole, spasm control, airway and intensive support, and active vaccination. TIG neutralizes unbound toxin but cannot reverse toxin already attached to nerves.
Vaccine: who and when?
Children receive Daptacel or Infanrix DTaP, including combination options such as Pediarix, Pentacel, Kinrix, Quadracel, and Vaxelis. Older children and adults use Boostrix or Adacel Tdap and Tenivac Td. A Tdap dose is recommended in each pregnancy; routine boosters are every 10 years, with wound-based dosing when indicated.
Cost note: Patient cost varies by product, provider, insurance, location, and eligibility. Many recommended vaccines are covered in network without cost sharing, and qualifying children may use the Vaccines for Children program.
Trusted source
Patient cost varies by insurance, provider, location, and eligibility. Coverage and public-health access differ, so listed prices are examples rather than guaranteed patient prices. This page is for general education and does not replace individualized medical advice, diagnosis, vaccination assessment, or treatment.
Tetanus: Symptoms, Causes, Treatment, Prevention, and Vaccine Information
Tetanus differs from most vaccine-preventable diseases because it is acquired from environmental spores rather than another person. Any population can remain at risk even when local vaccination rates are high. Toxin blocks inhibitory nerve signals, producing rigidity and severe spasms. Vaccination, appropriate wound care, and TIG when indicated prevent disease.
Important: This page is for general education. It does not replace diagnosis, treatment, vaccination advice, or emergency care from a qualified healthcare professional.
Quick Facts
| Topic | Current information |
|---|---|
| Cause | Tetanus occurs when Clostridium tetani spores from soil, dust, or manure enter damaged tissue and produce toxin. Punctures, contaminated wounds, burns, crush injuries, injection-drug wounds, and rarely childbirth or surgery can provide entry. |
| Main symptoms | Jaw stiffness or lockjaw, painful muscle spasms, trouble swallowing, rigid abdominal or back muscles, fever, sweating, fast heart rate, and unstable blood pressure. Spasms may be triggered by light, noise, or touch. |
| Typical course | Symptoms usually begin 3 to 21 days after exposure. Illness often requires weeks of intensive care, and recovery can take months because nerve endings must regrow. |
| Treatment | Emergency treatment includes wound cleaning, human tetanus immune globulin, antibiotics such as metronidazole, spasm control, airway and intensive support, and active vaccination. TIG neutralizes unbound toxin but cannot reverse toxin already attached to nerves. |
| Vaccine status | Children receive Daptacel or Infanrix DTaP, including combination options such as Pediarix, Pentacel, Kinrix, Quadracel, and Vaxelis. Older children and adults use Boostrix or Adacel Tdap and Tenivac Td. A Tdap dose is recommended in each pregnancy; routine boosters are every 10 years, with wound-based dosing when indicated. |
History and Public-Health Importance
Tetanus has been recognized since antiquity. Isolation of its toxin led to antitoxin and then tetanus toxoid vaccines. Routine childhood vaccination and adult boosters made U.S. disease rare, but cases continue among unvaccinated or inadequately vaccinated adults, especially older people and people who inject drugs.
What Causes Tetanus?
Tetanus occurs when Clostridium tetani spores from soil, dust, or manure enter damaged tissue and produce toxin. Punctures, contaminated wounds, burns, crush injuries, injection-drug wounds, and rarely childbirth or surgery can provide entry.
Spores are common in soil, dust, and animal feces. They germinate in damaged tissue with low oxygen. Rust itself does not cause tetanus, but a dirty puncture from a rusty object can create the right conditions. Tetanus cannot spread between people.
Symptoms and Typical Course
Jaw stiffness or lockjaw, painful muscle spasms, trouble swallowing, rigid abdominal or back muscles, fever, sweating, fast heart rate, and unstable blood pressure. Spasms may be triggered by light, noise, or touch.
Early jaw stiffness, difficulty swallowing, and neck or abdominal rigidity progress to painful generalized spasms and an arched back. Autonomic instability may produce sweating, fever, rapid heart rate, and dangerous blood-pressure swings. Consciousness is often preserved, making spasms especially distressing.
Complications and Who Is at Higher Risk
Tetanus can cause airway obstruction, respiratory failure, aspiration, fractures from spasms, blood clots, pneumonia, cardiac instability, and death. Infection does not create immunity.
Laryngeal spasm or respiratory-muscle paralysis can stop breathing. Spasms may fracture bones or injure muscles. Prolonged ventilation raises pneumonia and clot risk. Autonomic instability can cause arrhythmia or cardiac arrest. Neonatal tetanus remains a global concern where clean delivery and maternal vaccination are limited.
How It Is Diagnosed
There is no laboratory test that reliably rules tetanus in or out. Diagnosis is clinical, based on characteristic spasms and wound or vaccination history. Culture can be negative despite disease and positive without disease, so treatment must begin immediately.
Treatment and Recovery
Emergency treatment includes wound cleaning, human tetanus immune globulin, antibiotics such as metronidazole, spasm control, airway and intensive support, and active vaccination. TIG neutralizes unbound toxin but cannot reverse toxin already attached to nerves.
Wounds are cleaned and devitalized tissue removed. TIG is infiltrated when feasible and given intramuscularly to neutralize free toxin. Metronidazole is commonly used against vegetative bacteria. Benzodiazepines, magnesium, neuromuscular blockade, tracheostomy, or ventilation may be needed. Vaccination begins during recovery because illness does not produce immunity.
Vaccine Information
Children receive Daptacel or Infanrix DTaP, including combination options such as Pediarix, Pentacel, Kinrix, Quadracel, and Vaxelis. Older children and adults use Boostrix or Adacel Tdap and Tenivac Td. A Tdap dose is recommended in each pregnancy; routine boosters are every 10 years, with wound-based dosing when indicated.
Daptacel and Infanrix are five-dose childhood DTaP products; combination vaccines supply particular doses and other antigens. Boostrix and Adacel are Tdap products, while Tenivac is Td. Adults need one lifetime Tdap if never received, then Td or Tdap boosters every ten years. Every pregnancy includes Tdap during 27-36 weeks. Dirty wounds may require booster and TIG based on wound type and vaccine history.
Prevention
Complete primary vaccination and boosters, keep records current, clean wounds promptly, remove foreign material, and obtain professional assessment for deep, dirty, puncture, crush, burn, bite, or injection-related wounds. Antibiotics alone do not replace vaccine or TIG.
When to Seek Medical Care
Seek emergency care for jaw stiffness, muscle spasms, swallowing difficulty, or breathing problems. Obtain same-day wound guidance after a high-risk injury if vaccination history is incomplete or uncertain.
Frequently Asked Questions
Can tetanus spread between people?
No. It comes from environmental spores entering damaged tissue.
Does rust cause tetanus?
Rust does not cause it, but puncture wounds contaminated with soil can support spore germination.
Does surviving tetanus create immunity?
No. Patients still need vaccination during recovery.
Which adult vaccines contain tetanus toxoid?
Boostrix and Adacel are Tdap products; Tenivac is a Td product.
Key Takeaway
Tetanus is environmental, noncontagious, and potentially fatal. Staying vaccinated and managing high-risk wounds correctly are the only dependable protections.
Medical, treatment, and vaccine information was reviewed against official U.S. public-health guidance available through September 2026.