[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Clinical skills](https://durgical.com/en/clinical-skills/) › [Wounds and sutures](https://durgical.com/en/clinical-skills/areas/wounds/) › Tetanus prophylaxis after a wound: who needs what

# Tetanus prophylaxis after a wound: who needs what

- Interpretation

After a cut, the doctor checks how dirty the wound is and how many tetanus shots the person has had, then decides on a booster, antibodies or nothing.

Updated Nov 13, 2026

## Key points

- Two questions: clean minor or tetanus-prone wound, and three or more documented doses or not.
- Clean minor wound, three or more doses: a booster only if 10 years or more have passed since the last dose.
- Tetanus-prone wound, three or more doses: a booster if 5 years or more have passed; immunoglobulin is not needed.
- Fewer than three doses or unknown history: vaccine always; add immunoglobulin if the wound is tetanus-prone.
- Severe immunodeficiency or HIV with a tetanus-prone wound: give immunoglobulin whatever the vaccine history.

## What it is

Tetanus is caused by the toxin of Clostridium tetani, a spore-forming anaerobe found in soil, dust and animal faeces. Its spores enter through any break in the skin and germinate where oxygen is low, in deep, dirty or devitalised wounds; the toxin then blocks inhibitory neurons and causes rigidity and painful spasms. The disease is preventable, so every wound is a prompt to check immunisation. Two questions decide what to give. First, is the wound clean and minor, or is it tetanus-prone (contaminated with soil, faeces or saliva, a puncture, avulsion, crush, burn, frostbite, missile injury, or with dead tissue)? Second, how many doses of tetanus toxoid has the person had, and when was the last one? A vaccine containing tetanus toxoid (Td or Tdap in adults, DTaP-based vaccines in young children) gives active immunity over days to weeks; tetanus immunoglobulin gives immediate passive protection when the person may not be immune. Wound care (cleaning and removal of dead tissue) is part of prophylaxis and matters as much as the injections. In Colombia, vaccination follows the PAI schedule.

## Reference values and concepts

- A complete primary series is three doses of tetanus toxoid; boosters maintain immunity.
- Tetanus-prone: contamination with soil, faeces or saliva, punctures, avulsions, crush, burns, frostbite, missiles and devitalised tissue.
- Tetanus immunoglobulin neutralises toxin not yet bound to nerves; it does not reverse toxin already bound.
- Vaccine and immunoglobulin are given with separate syringes at separate sites.
- Having had tetanus does not give immunity: survivors still need full vaccination.

## Reading it step by step

- Classify the wound: clean and minor, or tetanus-prone — contamination and dead tissue create the low-oxygen setting spores need.
- Ask for the vaccination card or record — memory of «I had my shots as a child» is unreliable.
- Count documented doses: fewer than three or unknown counts as not immune — the primary series needs three.
- Find the time since the last dose: over 10 years for clean wounds or over 5 years for prone wounds needs a booster.
- Add immunoglobulin when the wound is prone and the series is incomplete or unknown — the vaccine is too slow to protect now.
- Check for severe immunodeficiency or HIV — they may not respond to the vaccine, so prone wounds get immunoglobulin.
- Clean and debride the wound properly — removing spores and dead tissue is part of prophylaxis.
- Document what was given and arrange the remaining doses of the series — incomplete series leave the patient unprotected.

## What a wound needs, by wound type and documented tetanus vaccination history (no amounts: follow the national schedule).

| Wound | Doses of tetanus toxoid | Tetanus vaccine | Tetanus immunoglobulin |
| --- | --- | --- | --- |
| Clean, minor | Fewer than three or unknown | Yes | No |
| Clean, minor | Three or more | Only if 10 years or more since the last dose | No |
| Tetanus-prone | Fewer than three or unknown | Yes | Yes |
| Tetanus-prone | Three or more | Only if 5 years or more since the last dose | No |
| Tetanus-prone, with severe immunodeficiency or HIV | Any | As by history | Yes |

## Patterns and common mistakes

- Assuming childhood vaccination means current protection; older adults and people born before wide vaccination are often unprotected.
- Forgetting immunoglobulin for a dirty wound in someone with an unknown or incomplete history.
- Giving immunoglobulin to a fully vaccinated patient with a clean wound, which adds cost and no benefit.
- Giving a booster and not arranging the rest of an incomplete primary series.
- Treating the injections as enough and neglecting cleaning and debridement of the wound.

## Next step

- Give the vaccine and, if indicated, the immunoglobulin before the patient leaves; do not defer to a later visit.
- Book the remaining doses of the primary series and write them on the vaccination card (PAI).
- Pregnant women: tetanus-containing vaccine is safe; follow the national schedule, which offers Tdap in pregnancy.
- Explain early signs of tetanus (jaw stiffness, difficulty swallowing, muscle spasms) and to seek care at once if they appear.
- Refer urgently any patient with trismus or spasms after a wound: tetanus is managed in intensive care.

## Test yourself

Think of the answer, then tap the question to see it.

## A fully vaccinated adult whose last tetanus dose was 7 years ago has a clean, minor cut. What is needed?

Nothing for tetanus: with three or more doses and a clean minor wound, a booster is needed only if 10 years or more have passed. Clean the wound well.

## A farmer with an unknown vaccination history has a deep, soil-contaminated puncture. What is needed?

A tetanus-containing vaccine and tetanus immunoglobulin at separate sites, thorough wound cleaning and debridement, and booking of the rest of the primary series.

## Why does an incomplete or unknown history with a dirty wound need immunoglobulin as well as vaccine?

The vaccine takes days to weeks to produce antibodies; immunoglobulin gives immediate passive protection by neutralising toxin not yet bound to nerves.

## Does a person who has recovered from tetanus need vaccination?

Yes. The amount of toxin that causes disease is too small to induce immunity, so survivors still need a full course of tetanus toxoid.

[Add to my cards (4)](https://durgical.app/estudiar/?add=/en/clinical-skills/tetanus-prophylaxis-after-a-wound-who-needs-what/)

## Elsewhere in DurgiPedia

- [Giving vaccines safely and Colombia's PAI schedule](https://durgical.com/en/nursing/giving-vaccines-safely-and-colombia-s-pai-schedule/)

## Connections

## Related 3

- [Assessing a wound: close it now, later or never?](https://durgical.com/en/clinical-skills/assessing-a-wound-close-it-now-later-or-never/)
- [Cleaning and irrigating a wound before closure](https://durgical.com/en/clinical-skills/cleaning-and-irrigating-a-wound-before-closure/)
- [Animal and human bites: clean, close or leave open](https://durgical.com/en/clinical-skills/animal-and-human-bites-clean-close-or-leave-open/)

## Related conditions 1

- [Tetanus](https://durgical.com/en/conditions/tetanus/)

## Microorganisms 1

- [Clostridium tetani](https://durgical.com/en/microbiology/clostridium-tetani/)

## In Pharmacology 2

- [Tetanus vaccine (tetanus toxoid)](https://durgical.com/en/pharmacology/tetanus-vaccine/)
- [Human tetanus immunoglobulin](https://durgical.com/en/pharmacology/human-tetanus-immunoglobulin/)

[← All clinical skills](https://durgical.com/en/clinical-skills/)

Educational content; it does not replace supervised hands-on training, your institution's protocols or a prescriber's order. A procedure is learnt with a teacher and done only once you are trained to do it.

Sources: [Tetanus Prophylaxis](https://www.ncbi.nlm.nih.gov/books/NBK559008/) (StatPearls (NCBI Bookshelf), 2023); [Tetanus (Clostridium tetani Infection)](https://www.ncbi.nlm.nih.gov/books/NBK482484/) (StatPearls (NCBI Bookshelf), 2024).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/clinical-skills/tetanus-prophylaxis-after-a-wound-who-needs-what/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/clinical-skills/tetanus-prophylaxis-after-a-wound-who-needs-what/