10 Dog Breeds Most Likely to Bite

Dogs are often fun and loving, but they can cause serious problems when they bite. Over 4.5 million people get bitten by dogs every year in the United States, and nearly one in five people who are bitten need medical attention. Learn the top 10 dogs most likely to bite and how you can work to prevent dog bites from happening.

10 Dog Breeds That Bite the Most

Even the friendliest, most well-trained dogs might bite in certain instances. The causes for these bites may be a lack of training or a problematic situation. While dog bites can come from any breed, certain breeds bite more than others. Large dogs typically inflict more severe injuries, making them more commonly seen as violent than smaller breeds.

Here are 10 specific breeds of dogs that tend to be involved in dog attacks.

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1. Pit Bulls

The most dog bites by breed come from pit bulls. Pit bull bites also tend to cause more severe injuries than other dogs. They have a reputation for being the most violent dog breed and are often on lists of breeds people are unable to keep in certain areas or spaces like apartment buildings or neighborhoods. Pit bulls have been largely bred to be strong and aggressive for guarding and fighting purposes. They’re most often bred for illegal dogfighting, which results in abusive conditions.

Abuse and mistreatment can play a large role in a dog’s aggression, and pit bulls are often subjected to such conditions. In situations like this, dogs learn to be aggressive and will bite humans as a result. However, studies have shown that pit bulls’ aggression is largely due to their living conditions, and they aren’t necessarily naturally dangerous dogs.

While many pit bulls can be held responsible for dog bites, it’s also worth noting that their reputation makes people quick to blame the breed. Other dog breeds have similar physical features as pit bulls, so people assume that’s what they are.

For example, Staffordshire terriers bear a significant resemblance to pit bulls. At a quick glance or without proper knowledge, a Staffordshire terrier attack can easily be misclassified as a pit bull attack. This mistake can lead to inaccurate dog bite statistics because similar-looking breeds get grouped into the pit bull category.

If pit bulls do attack, they can cause serious injury or death because of how powerful they are. If you have or are considering this breed, know your behavior and dedication to training will impact the risk of your dog biting other animals or humans.

2. Rottweilers

These robust working dogs descend from Roman mastiffs, meaning they can inflict a powerful bite. Though originally bred to herd cattle and other livestock, today, Rottweilers are often used as guard dogs and for search and rescue. They’re known to be protective, which can result in aggressive behavior. Just like many other breeds of dogs, rottweilers need exercise, mental stimulation, and proper socialization — without these factors, this breed can be destructive, and their behavior can get out of control quickly.

Rottweilers are eager to work and please their owners, so dedication to training and stimulation is important to keeping this breed well-behaved. Their devotion and inclination to protect can be positive characteristics, though knowing the potential risk of biting is crucial to protect you, your dog, and others.

3. German Shepherds

German shepherds are a popular breed for their beauty, protective instincts, and desire to work. Because they can be aggressive to protect themselves and others, German shepherds are common choices for police and military roles.

Without proper training, a German shepherd’s protective instincts can quickly turn hostile toward strangers. What makes them effective guard dogs can also cause significant risks in certain situations. Violent behavior toward strangers may be helpful in some situations, though it can make inviting new friends over risky business.

While aggressive behavior serves this breed well in police settings, it won’t be helpful in your home. German shepherds are an extremely intelligent breed, so provide proper training to help mitigate aggressive tendencies.

4. Chihuahuas

When you’re thinking about dog bites, large breeds typically come to mind because they often inflict the most damage and can be lethal. Though small, Chihuahuas exhibit high levels of aggression, making them a higher risk for biting. While their bite won’t cause as much damage as a larger breed, it can still hurt and potentially cause harm that could require medical attention.

Chihuahuas’ aggressive behavior often includes nipping, biting, growling, and biting. They are hostile to adults and children, which can easily cause fear in people of any age.

5. Bully Breeds

Bully breeds are bulldog-type breeds, including:

• American bulldogs
• Bull terriers
• English bulldogs
• Boxers
• Cane corso
• Mastiffs

These breeds can be calm, though they have a strong jaw and can cause harm when agitated. Bulldogs can turn aggressive on a whim, going from well-behaved to biting and growling within minutes. Though some breeds in this category have smaller statures than others, they all tend to be quite muscular and can easily inflict wounds.

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6. Terriers

These small yet feisty dogs originally served as rodent hunters, meaning they instinctively bite their prey. Due to their short fuses and tendency to get agitated, terriers will use their biting instinct on humans. Kids are often more likely to set off the terrier breed and often fall victim to their bite.

Antagonizing this breed will likely lead to aggressive behavior and potentially a painful bite. Like other small breeds, a terrier bite is unlikely to be fatal, though it can instill fear in kids and make them undesirable to be around.

7. Dalmatians

Like many dogs on this list, Dalmatians can be great companions but may bite or harm people in the wrong situations. They were bred to run alongside carriages to ward off bandits and predators during travels. Their protective and guarding instincts and tendencies are often the cause of potential aggression and biting. Depending on the scenario, these dogs also tend to be aloof around strangers and potentially aggressive.

Ultimately, Dalmatians greatly benefit from early training and socialization. Without adequate exercise or proper socialization, this breed is known to be destructive and aggressive, snapping and biting people and chewing on your belongings.

8. Cocker Spaniels

Cocker spaniels have soft, floppy ears and a small stature, making them an unexpected addition to the list of biting dogs. Many families own cocker spaniels, but these dogs can bite or attack when upset or threatened. Their high energy and tendency to bite may mean families should avoid owning the breed.

9. Tosa Inu

Tosa Inus are a large dog breed with an extremely powerful bite. Breeders in Japan crossbred different European dogs to create the Tosa Inu, the largest Japanese dog breed. Their goal was to produce a powerful, undefeatable breed for dogfighting. Among dogs that attack, these dogs are particularly notable. These powerful breeds have taken many human lives in fatal dog attacks over the years and, as a result, have breed specific legislation that bans them in the United Kingdom and other countries, not including the United States.

The Tosa Inu is often feared because of its large size and bite, which can inflict serious pain. However, with proper training, they can be friendly.

10. Dobermans

Dobermans are a popular breed because they’re intelligent, strong, and adaptive. They’re also very loyal and protective, making them another popular choice for defense and police dogs. These muscular dogs are sure to scare off intruders, though their protective instincts can cause problems.  Dobermans’ strong jaws can cause harmful bites, though they can be trained to be gentle with people. Protect yourself, your dogs, and others with our Doberman Pinscher liability insurance.

How to Prevent Bite Accidents

You may have noticed that many of the breeds listed above are capable of being well-behaved dogs under the right ownership and with proper training. There are many individual dogs of each of these breeds that are well-trained and gentle.

While some dogs may be prone to aggressive behaviors due to their breed’s history, dogs are also very much a product of their environment. Most often, regardless of breed, dogs are aggressive as a reflection of the way they’ve been treated, a lack of training, or fear. A dog bites the most due to its situation rather than genetics.

Whether you already have one or are considering getting a dog from the breeds listed — or any breed — knowing how to prevent a dog bite accident is essential. The key to doing this lies in being a responsible pet owner, training, socialization, and understanding your dog’s behavior.

Why Do Dogs Bite Their Owners?

Dogs bite their owners for various reasons, often reacting to a specific situation or feeling. Here are some of the common reasons:

• Stress or fear: Dogs may bite when they are in a stressful situation or feel scared. It’s a defensive response in which the dog tries to protect itself.
• Territorial defense: Dogs are often protective of their territory, which includes their home, their space, and even their owners. If they perceive a threat to their territory, they may react aggressively, which can lead to biting.
• Pain or discomfort: If a dog feels unwell due to illness or injury, it might bite as a reaction to the discomfort. They might be trying to communicate that they want to be left alone or are in pain.
• Resource guarding: Behavior where dogs bite to protect something they value is a common reason for dog bites. This resource could be their food, a favorite toy, or their puppies. Understanding this natural survival instinct can help you manage it effectively.
• Playfulness: Some dogs might nip or bite during play. While it might be fun for the dog, it can be dangerous for people, especially if the dog gets overly excited.

It’s crucial to recognize that any dog, regardless of breed or size, can bite. However, understanding the reasons behind this behavior can empower you to prevent it. Regular training from an early age, adequate socialization, maintaining a calm environment, and proper care when the dog is sick are key measures that can significantly reduce the chances of a dog biting its owner.

Being a Responsible Pet Owner

Remember — dogs are a product of their environment. If you are or plan to become a dog owner, remember that how you treat your dog will affect how your dog behaves around you, kids, other people, and pets. Much like how you can’t demand respect from someone if you don’t give respect to them, if you treat a dog poorly, it will likely react poorly.

Being a responsible pet owner goes beyond giving your dog good conditions to live in. Responsible dog ownership also means:

• Choosing a dog breed that’s right for your living situation and family situation
• Providing adequate exercise for the breed
• Watching your dog when it interacts with other animals or people
• Exposing your pet to social situations under controlled circumstances
• Taking extra care around vulnerable people, like young children
• Maintaining control of your dog in public with a leash
• Keeping your dog healthy to prevent pain that could cause unpredictable behavior

You should also take into account everything that may contribute to a dog bite accident — from stressful situations to meeting new people — and work to prevent it from happening. You may warn strangers not to pet your dog when you’re out for a walk, for instance, or have your dog wear a warning collar.

Effective Training

Begin training your dog as early as possible. When dogs learn proper behaviors from a young age, they can be less likely to act out as they grow. The sooner you start training your puppy, the sooner you’ll be able to form a positive relationship with the dog, making it more likely for them to learn from you.

Effective training includes reinforcing positive behavior with rewards rather than disciplining bad behavior with punishments. Consistent training is also crucial, as it keeps good behavior fresh in their minds and helps them learn desired behavior quickly. You can learn ways to train your dog online or look for local dog training classes.

Proper Socialization

Socializing your dog when it’s a puppy helps expose it to new people, animals, objects, and places so they become more familiar with a variety of experiences. Socialization can help your dog feel comfortable and at ease in different situations instead of feeling stressed or scared — two feelings that can lead to biting. It’s best to start socializing your dog as soon as possible and give them the chance to become comfortable at their own pace.

Do your best to remove your dog from situations that make them feel uncomfortable so they can have positive experiences. A socialized dog will be more trustworthy and enjoyable to take places or have around other people. Unsocialized dogs can become a risk to others and to you.

Understanding Aggressive Behavior

Aggressive behavior sometimes goes unnoticed or is mistaken for play since dogs like to play a bit rough. It’s important to know what aggressive behavior looks like so you can take action before a bite accident occurs. Here are three types of aggression to watch for in your dog:

• Dominant aggression: Unfixed male dogs can display dominant and aggressive behavior. This may include mounting dogs or people’s legs, lunging at people, barging through doors, blocking someone’s pathway, low barks and snarls, or staring at other dogs and people.
• Fear aggression: When dogs are scared, they can be more inclined to bite to protect themselves or others. Your dog may display submissive body language when they feel scared or stressed. Avoid approaching or touching or letting others do so if your dog holds its ears back, lowers its head and body, tucks its tail between its legs, avoids eye contact, or pees on the floor.
• Possessive aggression: Possessive aggression is common among dogs who had to compete for food, toys, people, or other resources. This type of aggression is common in rescue dogs or when a new rival is introduced. Possessive aggression might look like your dog growling when another dog comes near them while eating.

Aggressive behavior will look different in every situation, so learning the signs can help you identify when your dog may become a risk to you and others. Try reassuring and comforting your dog rather than punishing it when it displays signs of aggression. Recognize situations that cause your dog to exhibit aggressive behavior and limit them whenever possible.

Protect You and Your Pet With Pet Liability Insurance

Dog-related injuries may lead to high costs from claims. Animal liability insurance may give you protection and true peace of mind.

While the dogs listed above are considered more likely to bite, any dog can bite or attack in particular circumstances. XINSURANCE can help connect you with reputable animal liability insurance solutions, which may protect you if your dog injures someone or another animal or damages property. Pet insurance may help cover third-party property repairs and medical bills in the event that your pet’s behavior results in a lawsuit against you.

If your dog is considered a dangerous breed or is more likely to bite, XINSURANCE can help you find coverage. Request a quote and learn more about pet insurance.

Authored by Rick J. Lindsey, President, Chairman, and CEO of XINSURANCE

Rick J. Lindsey hails from Salt Lake City, Utah. He began working in the mailroom of his father’s Salt Lake City insurance firm, getting his introduction to the business that became his lifelong career. Rick J. Lindsey quickly rose through the ranks while working in nearly every imaginable insurance industry job. As an entrepreneur, specialty lines underwriter, claims specialist, risk manager, and a licensed surplus lines broker, Rick J. Lindsey is highly skilled in all levels of leadership and execution. As he progressed on his career path, Rick J. Lindsey discovered an urgent need for insurers willing to write policies for high-risk individuals and businesses. He was frequently frustrated that he could not provide the liability protection these entities desperately needed to safeguard their assets. He also formed the belief that insurance companies acted too quickly to settle frivolous claims. Rick J. Lindsey decided to try a different approach. He started an insurance company and became the newly formed entity’s CEO. This opportunity has enabled Rick J. Lindsey to fill a void in the market and provide a valuable service to businesses, individuals, and insurance agents who write high-risk business. XINSURANCE also specializes in helping individuals and businesses who live a lifestyle or participate in activities that make them difficult for traditional carriers to insure. If you’ve been denied, non-renewed, or canceled coverage, don’t give up quite yet. Chances are XINSURANCE can help.