Dog Bite Injury: Do You Need Tetanus Shots After a Shallow Cut? - Surgery

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Dog bite injury


The doctor would like to ask you: Last night, while trying to remove something from my dog's mouth, I accidentally got bitten.
However, the bite didn't create a puncture wound; it was more like a superficial cut, similar to being grazed by a utility knife.
It looks like a small area of skin has been scraped but it’s very shallow and doesn’t penetrate into the flesh.
I disinfected the area with iodine three times last night.
Should I get a tetanus shot? My dog is vaccinated against rabies and received the shot less than a year ago.
All the dogs in the household have regular dental care.
However, I’ve read a lot online and I'm worried.
My mother says I don’t need the shot.
What should I do?

Gao, 10~19 year old female. Ask Date: 2023/01/25

Dr. Chen Bingze reply Surgery


If you're concerned, you can go to a clinic or hospital that administers the tetanus vaccine within the next few days.

Reply Date: 2023/01/25

More Info


When it comes to dog bite injuries, particularly those that result in shallow cuts, the decision to receive a tetanus shot depends on several factors, including the nature of the injury, your vaccination history, and the specific circumstances surrounding the incident.

Firstly, it’s important to assess the depth and severity of the wound. In your case, you described the injury as a shallow cut, similar to a scratch, without any deep puncture or significant bleeding. This type of injury generally poses a lower risk for complications, especially if you have properly cleaned the wound with antiseptic solutions like iodine.

The Centers for Disease Control and Prevention (CDC) recommends that adults receive a tetanus booster shot every ten years. However, if the wound is particularly dirty or deep, or if it has been more than five years since your last booster, a tetanus shot may be warranted. Since your injury is shallow and you have a history of regular vaccinations, it is likely that you may not need a tetanus shot. However, if you are unsure of your vaccination status or if it has been a while since your last booster, it is always best to consult with a healthcare professional.

Regarding the rabies vaccination, since you mentioned that your dog is up to date on its rabies shots and has been well cared for, the risk of rabies transmission is minimal. Rabies is a serious viral infection that can be transmitted through the saliva of an infected animal, but it is rare in vaccinated pets. Nonetheless, if there are any doubts about the dog’s vaccination status or if the dog shows any unusual behavior, it is advisable to seek medical advice.

In addition to considering tetanus and rabies vaccinations, it’s crucial to monitor the wound for signs of infection. Symptoms such as increased redness, swelling, warmth, pus, or worsening pain could indicate an infection, and you should seek medical attention if these occur. It’s also worth noting that dog bites can introduce bacteria into the wound, which can lead to infections even in seemingly minor injuries.

In summary, based on the information provided, it seems unlikely that you would need a tetanus shot for a shallow cut from a dog bite, especially if your vaccinations are current. However, if you have any concerns about your vaccination history or if the wound shows signs of infection, it is always best to consult a healthcare provider for personalized advice. Regular wound care, including cleaning and monitoring for infection, is essential for proper healing. If you experience any unusual symptoms, such as persistent pain, fever, or changes in consciousness, seek medical attention promptly.

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Do I Need a Tetanus Shot After a Dog Bite Injury?

Hello Dr. Lee! I was bitten by a dog on my arm two and a half years ago, and I went to a clinic for wound care and received a tetanus shot at that time. Now, I have been bitten by a dog again on my wrist; this time, it bit my clothing sleeve. Initially, the wound did not bleed, b...


Dr. Li Zhonghuai reply Surgery
Hello! There is no need for a tetanus shot, but if it’s a wild dog, be cautious of rabies. Stay safe! Changhua Hospital cares about you!

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Doctor, I am the inquirer with ID 191846. I would like to ask you about a bite I received yesterday. If I do not experience any symptoms in the next couple of days, is it unnecessary for me to get a tetanus shot? The wound looks like a minor scrape, similar to a cut from a utilit...


Dr. Chen Bingze reply Surgery
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