Do I Need a Tetanus Shot After a Dog Bite? What You REALLY Need to Know

September 22, 2025 |

Most animal bites are not serious, but you may need to get medical help if the bite is severe or there are signs of infection.

This page is about human bites and bites from animals, such as cats and dogs, that have broken the skin. Theres a separate page about snake bites.

So your furry friend had a bad day (or maybe it wasn’t even your dog) and now you’re sitting there with a bite wound wondering, “Do I need a tetanus shot after this dog bite?” First off—deep breath. I’ve been there, and I’m gonna walk you through everything you need to know without the medical mumbo-jumbo

The Quick Answer (For Those in a Hurry!)

Yes, in most cases, you DO need a tetanus shot after a dog bite if it’s been more than 5 years since your last tetanus booster Don’t panic though—this is standard procedure and not because the specific dog has tetanus

Why Tetanus Shots Matter After Dog Bites

Dog bites aren’t just painful—they’re packed with bacteria you definitely don’t want in your bloodstream. Among the most dangerous potential consequences is tetanus, which is basically a silent killer that doesn’t forgive delay.

The weird thing is, tetanus is actually pretty rare in dogs themselves. But here’s the kicker—it’s not about the dog having tetanus. It’s about the bacteria called Clostridium tetani, which lives in dirt, dust, and yes, sometimes in dog saliva. When those sharp canine teeth puncture your skin, they can introduce these bacteria deep into your tissues where they thrive in low-oxygen environments.

Even a small, shallow wound that didn’t bleed much can harbor these nasty spores. That’s why doctors don’t mess around with this stuff.

When Do You Need a Tetanus Shot After a Dog Bite?

Here’s the breakdown of when you definitely need that shot:

  • If it’s been more than 5 years since your last tetanus booster and the bite broke your skin
  • If you’ve never been vaccinated or don’t know your vaccination history (you’ll need both Tdap/Td AND TIG)
  • If the wound is dirty (and yes, pretty much all dog bites are considered “dirty wounds”)

I once thought my tetanus shot from college would last me forever (spoiler alert: it doesn’t). These shots need regular updates, kinda like your phone software!

How Quickly Do You Need the Shot?

Time is seriously of the essence here. You should get a tetanus shot within 48 hours of the bite for it to be most effective. Even if you’ve cleaned the wound thoroughly yourself (which you absolutely should do!), you still need to see a doctor ASAP.

Don’t make the mistake I did once, waiting three days because “it didn’t look that bad.” By then, bacteria could already be multiplying!

First Aid Steps Before Getting the Shot

Before you head to the doctor or while you’re waiting for your appointment, here’s what you should do immediately:

  1. Wash the wound thoroughly with soap and warm water for at least 5 minutes
  2. Apply pressure with a clean cloth if it’s bleeding
  3. Apply antibiotic ointment like bacitracin
  4. Cover it with a sterile bandage

These steps can help reduce the risk of infection, but they’re NOT a substitute for proper medical care and that tetanus shot!

Types of Tetanus Shots (The Alphabet Soup of Protection)

When you go to get your shot, you might hear the doctor mention different types of vaccines. Here’s what they mean in plain English:

  • Tdap (Tetanus, Diphtheria, Pertussis): This is what adults get if they’ve never had one before
  • Td (Tetanus, Diphtheria): This is what you get if you’ve already had Tdap before
  • TIG (Tetanus Immune Globulin): This is for immediate protection if you’ve never been vaccinated or have no records

I was super confused about this when I got my last shot—thought they were trying to upsell me or something! But each one has its purpose.

Where Can You Get a Tetanus Shot After a Dog Bite?

You’ve got several options, and some are definitely better than others:

Best Places to Get a Tetanus Shot

Location Wait Time Cost Range When to Choose This
Urgent Care Short $$ Best all-around option for most bites
Retail Clinic (CVS, Walgreens) Very Short $ For minor scratches, shot only
Emergency Room Long $$$$ Only for deep bites, face injuries, or severe bleeding

For most dog bites, urgent care is your best bet. They can evaluate the wound AND give you the shot, usually with minimal waiting. I’ve been to both the ER (waste of time and money for a minor bite) and urgent care (in and out in 45 minutes). Trust me on this one!

Will Insurance Cover My Tetanus Shot?

The good news is most insurance plans DO cover tetanus shots after a dog bite because they’re considered treatment for an injury, not preventive care. But there’s a trick to this:

  • Make sure they code it as “injury-related care” not as a routine vaccine
  • If you have Medicare, it needs to be billed under Part B, not Part D
  • If you don’t have insurance, retail clinics often offer the most affordable options ($25-$150)

Special Situations: When the Rules Change

What If I’m Pregnant?

Yes, you can and SHOULD still get a tetanus shot if you’re pregnant! Tdap is not only safe during pregnancy but is actually recommended during every pregnancy between 27-36 weeks to protect your baby from whooping cough.

What If I Just Got a Tetanus Shot Last Year?

If your last tetanus booster was within 5 years and the wound isn’t exceptionally severe, you probably don’t need another shot. But always let the doctor make that call—don’t self-diagnose!

What If the Dog Is My Own Pet and Fully Vaccinated?

The dog’s vaccination status doesn’t matter for tetanus risk. Unlike rabies, tetanus isn’t spread directly from the dog to you—it’s about environmental bacteria that might be in the dog’s mouth.

Other Risks Besides Tetanus

While we’re talking about dog bites, tetanus isn’t the only concern. You should also watch for:

  • Rabies (if the dog is unknown or unvaccinated)
  • Bacterial infections like Capnocytophaga, Staph, and Strep
  • Damage to nerves, tendons, or blood vessels

Signs You Should Seek Immediate Medical Care

Don’t wait to get medical attention if:

  • The wound is a deep puncture
  • The skin is badly torn or crushed
  • There’s severe bleeding
  • You notice increasing swelling, skin color changes, pain, or discharge
  • You aren’t sure if the animal has rabies

Real Talk: Why People Skip the Shot (And Why That’s a Bad Idea)

I get it—nobody likes needles. And maybe you’re thinking, “It’s just a little bite, I’ll be fine.” But here’s the scary truth: tetanus has a mortality rate of about 30%, and it’s even higher in patients over 60. Those aren’t odds you want to mess with.

The symptoms of tetanus include jaw cramping (that’s why they call it “lockjaw”), painful muscle spasms, headache, seizures, fever, and elevated heart rate. By the time these symptoms show up, it’s often too late for the vaccine to help.

My Personal Experience

Last summer, I got nipped by my neighbor’s usually friendly golden retriever. It barely broke the skin, so I almost didn’t bother going to the doctor. But my wife insisted (she’s smart like that), and sure enough, my last tetanus shot had been 7 years ago. The peace of mind from getting that shot was totally worth the 30-minute detour to urgent care.

Final Checklist: What to Do If a Dog Bites You

  1. Wash the wound thoroughly with soap and water (5+ minutes)
  2. Stop bleeding and apply antibiotic ointment
  3. Cover with a clean dressing
  4. Check your tetanus shot history (if possible)
  5. Head to urgent care if the bleeding has stopped
  6. Ask for Tdap/Td and possibly TIG if needed
  7. Monitor for fever, swelling, red streaks, or pus
  8. Document everything (photos, dog details, medical receipts)

FAQ About Tetanus and Dog Bites

Can I get tetanus from a scratch that didn’t bleed much?

Yes! Even superficial wounds can introduce tetanus bacteria. It’s about depth, not blood.

Is it too late to get a tetanus shot 3 days after a bite?

It’s not ideal, but you’re still within the window where it can help. Don’t delay any further though!

Can I just get a tetanus booster at the pharmacy without seeing a doctor about the bite?

For very minor scratches, maybe. But pharmacies don’t evaluate wounds or provide antibiotics. For anything more than a superficial scratch, you need proper medical evaluation.

What if I already got a tetanus shot last year—do I need another?

Probably not, unless your wound is exceptionally severe. The standard guideline is every 5 years for dirty wounds and every 10 years for clean ones.

The Bottom Line

Dog bites happen—I’ve been there. But getting a tetanus shot is one of those things you shouldn’t skip or delay. It’s quick, relatively painless, and could literally save your life. Don’t take chances with your health over something so simple to prevent!

Remember: Clean the wound, get to a doctor within 48 hours, and be honest about your vaccination history. Your future self will thank you!

Have you ever had to get a tetanus shot after an animal bite? What was your experience like? Drop a comment below—I’d love to hear your story!

do i need tetanus after dog bite

Urgent advice: Get help from NHS 111 if:

Youve been bitten and:

  • you think there may still be objects like teeth, hair or dirt in the wound
  • the bite is hot or swollen (it may also be painful, red or darker than the surrounding skin)
  • you have a high temperature
  • fluid is leaking from the bite
  • the bite smells unpleasant
  • you were bitten on your hands or feet
  • you were bitten by a person

You can call 111 or get help from 111 online.

What to do after animal or human bites

There are some things you can do after being bitten by an animal or a person.

  • clean the skin around the wound with soap and warm water – you can also use antiseptic, but try not to get it in the wound
  • try to remove any objects like teeth, hair or dirt from the wound using running water
  • gently squeeze the wound so it bleeds slightly (unless its already bleeding) – this can help reduce the risk of infection
  • press a dry dressing or clean cloth firmly onto the wound to stop the bleeding if its bleeding heavily
  • after cleaning the wound, gently pat it dry and cover it with a clean dressing
  • take paracetamol or ibuprofen to help ease any pain and swelling – children under 16 should not take aspirin

Do I Need A Tetanus Shot After A Dog Bite? – Ask A Pet Vet