When it comes to our dogs, aggression can be one of the most misunderstood behaviors. It’s easy to assume a dog is simply being “mean” or “bad,” but the truth is far more complex. Aggression is often a form of communication—one that’s rooted in fear, anxiety, frustration, or instinct.

Knowing how to recognize the early signs and address the behavior safely and humanely can make all the difference in preventing incidents and strengthening your bond with your pup. With guidance from renowned aggression expert Michael Shikashio, CDBC, here’s what every dog owner should know:


1. How to Safely Break Up a Dog Fight

Dog fights are scary and often happen quickly. The instinct to jump in with your hands can be dangerous—both for you and the dogs. Instead, use a loud noise, a spray of water, or a distraction like a bucket or blanket to interrupt the fight. The goal is to separate the dogs without risking injury.


2. Introducing Dogs to Each Other

Successful dog introductions start with a bit of planning. Let the dogs get used to each other’s scent before they meet. When it’s time to introduce them in person, choose neutral territory and use loose leashes. Look out for signs of stress like stiff posture, growling, or avoidance. If either dog seems uncomfortable, pause the interaction and try again later. Positive reinforcement can go a long way in building trust.


3. Play vs. Prey Drive

Sometimes it’s hard to tell whether your dog is just playing or if it’s something more serious. Rough play can look intense, but it’s often harmless if both dogs are engaged and having fun. Prey drive, on the other hand, is an instinctual chase behavior that can escalate quickly and may look aggressive. The key difference? Play is mutual—prey drive is one-sided and fast-paced.


4. Leash Aggression and Reactivity

Many dogs become reactive on leash because they feel restricted or anxious. Barking, lunging, or growling on walks doesn’t always mean your dog is aggressive—it may be a stress response. A tight leash can actually make things worse. Keep the leash loose, stay calm, and reward relaxed behavior to help your dog stay in control.


5. Managing Resource Guarding

Does your dog growl when you approach their food bowl, favorite toy, or even their bed? That’s resource guarding, and it’s more common than you think. Instead of punishing the behavior, use positive reinforcement to teach your dog that your presence = good things. Over time, this helps reduce anxiety and builds trust.


6. Fear-Based Aggression

Fear is one of the most common causes of aggression in dogs. A fearful dog might cower, growl, show the whites of their eyes, or raise their hackles. This isn’t about dominance—it’s about self-protection. The solution? Desensitization, patience, and lots of positive reinforcement to build your dog’s confidence in scary situations.


7. Is It a Kiss or a Dismiss?

Sometimes what looks like affection—a dog licking another dog’s face, for example—can actually be a signal of submission or discomfort. Dogs use body language to communicate, and licking can be a way to diffuse tension or avoid conflict. Look at the whole picture: is the body relaxed or stiff? Are there other stress signals? Knowing how to “read the room” helps prevent misunderstandings between dogs.


Final Thoughts

Aggression isn’t a personality flaw—it’s a behavior, and all behavior has a reason. Whether your dog is showing signs of fear, frustration, or guarding, the key is to approach the issue with understanding and positive training methods. With the right support and a bit of patience, aggressive behaviors can be managed and even resolved.