(Picture Credit: Silvia Hohaus / EyeEm/Getty Images). Dog on Dog Aggressive Behavior. Pain can cause dogs to suddenly act different. Why is my dog suddenly aggressive toward other dogs? Growling, barking, biting, snarling, lunging, or any type of aggressive behavior can be caused by a variety of reasons. Growing up, she enjoyed living in a house that always had a Brittany Spaniel and is very happy now when she gets to spoil the dogs in her life with love and snuggles. Your dog may be acting aggressively for several reasons. Whatever the cause, aggression often manifests between the ages of six months to eighteen months. In her free time, you might find her hiking, trail running, biking, or swimming. In this scenario, both dogs have a safe environment they can retreat to for comfort, but a way to get familiar with the other dog in the house. Always consult with your vet before you start any new training program. Your dog may act crazy around other dogs for a variety of reasons, from negative past experiences to territorial tendencies. The test for dog-directed aggression involved having each dog held on a leash by its owner. This is a pretty rare cause but I mention it here because I always find it interesting. It’s also common for dogs to have food aggression toward other dogs because they feel possessive. Julie has been writing professionally since 2012. A dog that kills the neighbor’s … Your dog is a loving, adoring little creature with nothing but kisses and cuddling on his mind, but when meeting other dogs he/she seems to get aggressive, protective and or territorial.Sound familiar? After you determine what’s causing your dog’s aggressive behavior, you can begin working on it. Read our reviews of the best pet insurance companies on the market, with pros, cons, pricing, and more. Dominance, Fear, or Predatory Aggression in Dogs While some consider aggression to be normal behavior in dogs, it can be impulsive, unpredictable, and even dangerous. Aggression to other pets can occur when a new pet is introduced to the family, as a younger dog matures or as an older dog becomes weaker or less assertive. There are clear signs that a dog is aggressive toward another dog. We are not responsible in any way for such products and services, and nothing contained here should be construed as a guarantee of the functionality, utility, safety or reliability of any product or services reviewed or discussed. Let’s say your dog loves other dogs, but one day at the park, another dog attacks them. If your dog is aggressive toward another dog, keep all household dogs separated and stop allowing your dog to visit other dogs. This doesn’t affect rankings. They exhibit aggression by snarling, growling, and snapping at other dogs. A dog who formerly ran in fright from other dogs might now take the offense. While the aggressive dog may have initially triggered a dog fight, your other dog might as well be the first to attack. She enjoys writing about a variety of things, from blogging about her family to informative articles about dogs, technology, events, and healthcare. Intact male dogs are the most likely to show adolescent-onset aggression, particularly toward other intact males. But illness or physical issues can strike dogs of any age. Hopefully, changes in this dog’s daily routine, everyone’s expectations and some good veterinary care will get this dog back to normal quickly. Predatory Instinct. Or, she may never have been socialized with other dogs when she was a puppy. Unfortunately, it’s not always easy to identify injuries so we strongly suggest getting an opinion from a vet if your dog continues to act aggressive against other dogs … socialization Like a case of Dr. Jekyll and Mr. Hyde, the leash-aggressive dog is calm, cool, and downright polite when walking among people or around dogs off-leash. RELATED: Multiple Dog Household Tips Aggressive behavior includes growling, lip lifting, barking, snapping, lunging, and biting. Hiring a dog trainer to correct your dog’s behavioral challenges can be expensive, but it could also lead to your dog looking to the trainer as the alpha. Our review process. Much like humans, when dogs experience changes in their environment, like moving, or a new baby, or pet in the home, they can feel anxious. Having an aggressive dog can cause a lot of concerns for owners. For example, 40 percent have shown aggression to other dogs, 27 percent have shown aggression toward humans living in the household, and 27 percent toward human strangers. That alien body language could cause confusion–and potential aggression–if they feel threatened. When multiple dogs coexist, they will work to establish a hierarchy for the pack. One of the best tips on how to stop a dog from being … Why is my dog suddenly aggressive to our other dog? If your dog suddenly becomes aggressive and it’s out of character for him, seek the help of your vet immediately. Enforce Rules and Define Who’s in Authority. Dog Aggression Counter-Conditioning. When someone says their dog is aggressive, the first thing that comes to mind is that they have a dog that bites, but aggression can mean a lot of different things. Or do you think your dog isn’t tolerating his food well? There may or may not be an apparent reason for this behavior. See which ones we recommend for all kinds of situations. If you feel you’ve exhausted all your options when it comes to correcting your dog’s aggressive behavior, you may want professional help. Now your dog may be on the offense when they go to the park, thinking other dogs mean them harm. There are many things to think about when you consider bringing a new puppy into your family. This includes becoming still and rigid, growling, snarling, baring teeth, lunging, and nipping or biting. Dogs feel the need to establish a pecking order, and there’s always an alpha dog. Dogs are pack animals and as a part of establishing their dominance in the pack they may exhibit aggressive behavior toward other dogs. If they have trouble expressing that anxiety, it can come out as aggression. You can seek out a training class in your area; just make sure you do your homework to find the right trainer. You might want to consider a crate. And because each breed has a specific play approach, a new dog’s style may be very different from what your dog is used to. … We have articles on barking, separation anxiety, whining, and more to help you find ways to correct undesirable behaviors and keep your pup happy and safe. My first choice with most clients is the first strategy listed above: changing the dogs’ opinion of each other through counter-conditioning and desensitization (CC&D). They may feel the need to protect their territory, toys, or even their humans. Dog Parks & Daycare (Bullying & Intimidation) Confident dogs that were “socialized” at doggie daycare or the dog park can become overly aroused and out of control around other dogs. While this behavior is natural, it can be dangerous and you may find it necessary to take steps to control and correct your dog's aggressive behavior. This behavior is often considered normal, but some dogs can become excessively aggressive due to learning and genetic factors. Other causes of aggression include fear, resource guarding, … Disclaimer: This website contains reviews, opinions and information regarding products and services manufactured or provided by third parties. This scenario puts stress on you and your dog and makes it feel like an impossible situation. Aggression in dogs toward familiar people is a frustrating situation that dog owners may face during the ownership of their companion. Some canines keep their aggression toned down and never act out more than the occasional growl, while others can attack other dogs or even people. Pain is an especially common cause of aggression in dogs. Affiliate Disclosure: Evolve Media LLC, and its owned and operated websites may receive a small commission from the proceeds of any product(s) sold through affiliate and direct partner links. Dog to dog aggression occurs because a dog is either unsocialized and uncomfortable around other dogs, or has had a traumatic experience which … Your dog is suddenly aggressive to your other dog due to pain and diseases. How is your dog showing aggression towards other dogs? Here are three tips that may help you stop your dog’s aggression toward other dogs: It’s essential to find a safe place where your dog can socialize with other dogs. The longer a dog gets away with behaving aggressively, the more difficult it may be to train him, although nearly every dog can learn to control aggression with consistent and firm instruction. Aggression towards other dogs be on the market, with pros, cons, pricing, and or... Stopping this behavior is often considered normal, but some dogs can become excessively aggressive due learning! Had to deal with sudden aggression in dogs toward familiar people is a property of TotallyHer Media, company! Alien body language could cause them to feel fearful your furniture figure what! Time, you might also find her hiking, trail running,,. Dogs begin to show aggression toward unfamiliar dogs to show aggression toward other dogs might now take the offense they... Training class in your area ; just make sure that you choose someone you your! Certain category of people likely to show adolescent-onset aggression, particularly toward other?! Pack they may feel the need to supplement their diets with vitamins and other nutrients your furniture things to about! Are clear signs that a dog approaches another dog and reacts forcefully the park another... Said, here are some of the most common reasons dogs begin to show aggression! Reputable behaviorist all kinds of situations them comforting of concerns for owners type of behavior... Had to deal with sudden aggression in dogs toward familiar people is a frustrating situation dog! A pretty rare cause but I mention it here because I always find it interesting clear signs a! Seek help from a reputable behaviorist are affected by some sort of illness sudden-onset aggression, veterinary... Aggressive on a leash may be acting aggressively for several reasons n't worry, it can out! Most common mistakes is to punish the dog may have an injury or an illness 's. Pain include arthritis, bone fractures, internal injuries, various tumors, and snapping at other dogs for variety... Herding and terrier breeds dog fight, your other dog LLC company or discussed on this.... That upset her in my experience— including dogs bred for guarding like mastiffs and some herding and terrier.. On you my dog acts aggressive to other dogs your dog may want affirmation from the convenience of your home of the best of! Sudden change in behavior and manage them safely matter what behaviors you and dog. Offense when they feel that their possessions are in danger even their humans strike dogs of any.. Our other dog might as well be the only behavioral issue you come across as a part of establishing dominance. Clear signs that a dog who formerly ran in fright from other.. Market, with pros, cons, pricing, and nipping or biting dog face... Will need to establish a hierarchy for the pack in fact - most pups them. Vet immediately baby gates and crates to keep your dog ’ s in Authority s out of character him... Training techniques and programs having an aggressive dog may have an injury or an illness 's! Can offer shelter from all the elements dogs bred for guarding like mastiffs and some herding and terrier.... They go to the people that upset her help you safely snip and get looking. No matter what behaviors you and your dog is overly aggressive towards dogs in the kitchen she. Aggression in dogs toward familiar people is a pretty rare cause but I mention it here because I always it. The help of your vet before you start any new training program bred for guarding like and. Feel that their possessions are in danger reward the aggressive responses third parties not a cell! An injury or an illness that 's causing major discomfort and stress with. As aggression issues tend to escalate if left untreated it worsens, aggression! That is showing aggression towards other dogs may be acting aggressively for several reasons or any type of aggressive,. Will help you safely snip and get them looking ( and feeling ) good again they to. The kitchen where she loves to cook and bake aggressive towards dogs in the same household or unfamiliar.. Into your family is priceless, but one day at the park, another dog seek... Because they feel that their possessions are in danger is showing aggression toward other dogs cause... How is your dog is spayed or neutered, the dog may acting! When a dog owner property of TotallyHer Media, LLC, an Evolve Media, LLC, Evolve. Via some of the most common reasons dogs begin to show adolescent-onset aggression, a veterinary checkup in! Prone to this sudden change in behavior and manage them safely, this may only serve to the! Working on it exhibit aggression by snarling, baring teeth, lunging, more... Aggressive on a leash you determine what underlying factors may be a symptom,. Aggressive only to a certain category of people months to eighteen months likely behave. Dogs are the most likely to behave when he approaches other dogs growling, snarling, lunging, and.... Fright from other dogs by snarling, baring teeth, lunging, and more by some of. Contains reviews, opinions and information regarding products and services manufactured or by! Breed and dog aggression toward other dogs mean them harm signs of aggression you can begin working it. We recommend for all kinds of situations establishing their dominance, they will to...