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Pennsylvania Dog Bite Laws: Everything to Know

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Posted: 29th October 2025
Jacob Mallinder
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Like every state, Pennsylvania has its own dog bite laws that owners should know. Our article covers Pennsylvania dog bite laws.

In a state like Pennsylvania, where the dog ownership numbers are high, dog bites can happen, and when they do, the state laws determine who is responsible for the injuries and costs that follow. Whether your dog bit someone, you were bitten by a dog, or you are simply curious about Pennsylvania dog bite laws, our article will walk you through everything you need to know.

Understanding Pennsylvania Dog Bite Laws

Pennsylvania is one of the many states where the owner is liable for their dog's aggressive actions, including bites. Unlike some states that require the dog to have a history (as well as proof) of aggression, Pennsylvania dog bite laws rule that when a dog bites someone, it is automatically the owner's fault.

This is known as a strict liability statute. Therefore, if you have a dog, and your dog bites someone, you will be liable for it, whether there was a fault or intent, which brings us to the owner's liability under Pennsylvania dog bite laws.

Owner Liability Under Pennsylvania Dog Bite Laws

Under PA dog bite laws, owners are strictly liable for the victim's medical expenses following the bite or any other attack that results in injuries. The strict liability here means that the victim doesn't have to prove that the owner did something wrong. Simply, a dog biting someone makes the owner automatically liable for the medical treatment required as a result of the bite.

However, when it comes to non-medical damages, like pain and suffering, emotional distress, or lost wages, the victim must prove negligence. The strict liability here only applies to medical treatment.

Therefore, the owner would be liable for their dog biting someone if they knew or should have known that the dog was aggressive. The owner must also fail to act responsibly, such as keeping the dog on a leash or allowing risky behavior. When all these come together, the victim will likely be able to sue and win the case for negligence.

What if the Dog Has a Bite History Before Adoption?

Sometimes, people adopt dogs from a shelter with a history of human bites. What if a dog that a Pennsylvania resident just adopted bites someone? Will they be automatically liable for everything?

Under Pennsylvania dog bite laws, there isn't a distinction between a dog someone recently adopted and a dog the owner raised from puppyhood. If the dog is owned by the person, even if it was only for a day or two, then they will be liable for all reasonable medical treatment.

When it comes to non-medical damages, however, it would be harder for the victim to win full damages for negligence, as the owner of a newly adopted dog might not have spent enough time with the dog to know that they might bite others.

This, however, shouldn't discourage you from searching for dogs to adopt in Pennsylvania, like these adoptable pups. With the right training and guidance, any dog can learn to leave their aggressive tendencies behind.

Handling a Dog With a Bite History

If you have a dog in Pennsylvania that has a history of biting humans or acts aggressively, we have some tips that can help you manage the dog's behavior.

First and foremost, start with a full assessment of the dog's behavior, like what triggers the aggression, warning signs, and what helps manage aggressive tendencies. For instance, a dog might be aggressive when there are resources present, which leads to a stiff body posture, but manages to come out of guarding the resources after hearing a squeaky toy, getting instantly ready for play.

Understanding the dog's behavior is more than half of the work for managing their behavior. However, there might be medical causes, so a vet exam can be necessary if you can't find anything that triggers aggression.

Once you know the causes for aggression, you can then manage the dog's environment and begin training to modify their behavior. During this process, avoid punishments and consider using a muzzle when needed. While following all these, don't forget exercise and mental stimulation to ensure the dog doesn't engage in aggression due to boredom.

Following all these and by being patient throughout the process, you will not only handle a dog with a bite history but also rehabilitate a dog to live a happier life, making it a rewarding experience.

PA Dog Bite Laws Covered

Our article covered Pennsylvania dog bite laws and shared some tips for handling an aggressive dog. You now know what the PA dog bite laws say, and take control of your dog's aggression if that's what you're struggling with. If your dog bit someone and you're facing legal issues, we highly recommend consulting a lawyer to get professional help.

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About the Author

Jacob Mallinder
Jacob has been working around the Legal Industry for over 10 years, whether that's writing for Lawyer Monthly or helping to conduct interviews with Lawyers across the globe. In his own time, he enjoys playing sports, walking his dogs, or reading.
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