How To Train A Dog Who Is Aggressive

How To Train A Dog Who Is Aggressive


It’s hard to watch a dog who is aggressive and struggling with issues. It can be difficult to tell if your dog is aggressive or just doesn’t know how to interact properly with other dogs. There are several different types of dog aggression, but they all stem from the same place: fear. Instead of giving into your initial impulse of force, instead learn the right ways to train an aggressive dog so that you can help your furry friend live their best life without hurting others.

Not all dogs are aggressive, but even a dog who is usually sweet and friendly can become aggressive because of pain, illness, or sudden changes to their environment.

Not all dogs are aggressive, but even a dog who is usually sweet and friendly can become aggressive because of pain, illness, or sudden changes to their environment. Aggressive behavior may also develop if the dog has been abused or neglected in the past.

In this article we’ll discuss why your dog might be acting aggressively, and how to train a dog who is aggressive.

Aggressive behavior in dogs can be caused by a variety of factors, including pain, illness and sudden change to their environment. Aggression can also result from territorial or fear-based aggression. In addition, dog aggression can also be caused by frustration and stress.

In this article we’ll discuss why your dog might be acting aggressively, and how to train a dog who is aggressive.

What causes a dog to become aggressive?

There are many reasons why a dog may become aggressive. If your dog acts aggressively when people or other animals enter his territory, he’s most likely a territorial guarder. This breed of dog will also become incensed if you approach him while he’s eating or if you attempt to take away one of his toys. These dogs can be very protective and will attack anyone who threatens their family members or home.

Other causes include pain from an injury or illness, stress from situations such as being left alone while the owner is away at work all day, frustration over certain behaviors that they cannot do due to lack of skill/understanding how things work in the world around them (like opening doors), fear caused by loud noises (fireworks), etc…


  • Pain: You should always be aware of your dog’s behavior and if they are showing signs of pain. Dogs can have pain in their joints, muscles and bones. They can also have discomfort in their teeth or ears.
  • Aggression can be caused by a painful toothache, sore ear infection or even an eye injury. In some cases, the issue may require veterinary attention to determine the cause of aggression and provide treatment accordingly.


It’s important to remember that dogs can get sick from many different things. The root cause of a dog’s illness may be caused by a virus, bacteria, or parasites; it could be due to an adverse reaction to food; or it could be due to a drug or toxin.

These are all things you should consider when looking at your dog’s behavior and deciding whether they are aggressive towards other dogs because they are sick.


Your dog may be stressed if:

  • There’s been a change in your environment. If you recently moved, took on a new job or started dating someone, your dog may feel displaced and need some time to adjust. Just like humans, dogs need stability in their lives and can become anxious when things start changing too quickly or without warning. If this is the case for your dog, try giving him some extra attention at first so he feels more comfortable with his surroundings (and you!).
  • Your routine has changed significantly. It’s easy for dogs to get into routines that they enjoy—whether it’s going on long walks every morning or eating exactly four biscuits after dinner every night—but these rituals might not always align with what’s good for them overall. If this sounds familiar, try adjusting his schedule so that he gets more exercise during the day instead of just sleeping through it all night long! You’ll both be happier once he starts getting more exercise while staying on schedule with eating healthy foods throughout the day instead of just one big meal at night.”


Frustration is a common cause for aggressive behavior in dogs. Dogs are social animals and they want to be part of the pack. When we take our dog on a walk, he wants to smell everything along the way, but we keep pulling him back into line and telling him no. This can cause an issue with frustration because your dog wants to explore but you won’t let him do so. It’s important that you let your dog have some freedom during walks so he doesn’t get frustrated when you won’t let him sniff everything he sees or chase smaller animals out of fear that your dog might hurt someone else’s pet.

If your dog isn’t able to get what she wants (like food), this would also cause frustration because she isn’t getting what she desires from you – which will lead her not being able to trust you either!

Territorial behavior (for dogs who guard their homes/property, food, friends/family members)

If your dog exhibits territorial behavior, it’s important to avoid letting him guard any specific area or resource. If you want your dog to learn that he can be protective of the whole house, rather than just one room or corner, you should also give him access to all areas of the home.

It is also vital that your dog learn not to guard anyone in particular. Dogs who guard their owners may become aggressive toward strangers who try to approach their owner. Your dog should be able to notice when someone comes near without becoming overly protective or aggressive.

A dog who is acting aggressively might be in pain or sick.

A dog who is acting aggressively might be in pain or sick. Aggressive behavior can be caused by many things, including:

  • Pain – Dogs will often act aggressively when they are in pain. If a dog has an injured leg or sore back, they may bite as a way of protecting themselves from further injury. Similarly, if a dog has an eye infection or other kind of infection that causes them pain, they may react with aggression toward people and other animals who come near them because they are feeling uncomfortable and vulnerable.
  • Illness – Similarly to being hurt physically, dogs can also become agitated due to illness like epilepsy or diabetes mellitus (commonly referred to as diabetes). If your pet’s regular demeanor changes suddenly and dramatically due to what seems like no reason at all but turns out later was actually related to some kind of health issue such as these two examples above then it could very well be because something is going on with their body rather than just “being” mad at you!


We hope these tips were helpful! It’s important to keep in mind that every dog is different and needs an individualized training plan. As a result, these are just general suggestions for training an aggressive dog. If you’re interested in learning more about how to train your specific dog, we recommend reaching out to a professional trainer near you or checking out the resources on our website for more information about this topic.

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