ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Dog Aggression Prognosis

Updated on February 20, 2013
Dog Aggression prognosis
Dog Aggression prognosis | Source

Prognosis for Aggressive Dogs

The most common question from owners of aggressive dogs is: "what's my aggressive dog's prognosis?" It is obvious there's a lot of hope in this question and certain expectations. Most likely, the owner is hoping to hear a reassuring "your dog will be fine, it's only a phase" but unfortunately that is unlikely the answer. Fact is, ethical behavior professionals will never make any promises or guarantees on the outcome of behavior modification. Dog behavior is unpredictable, and when it comes to dog aggression, there are so many factors at play, that even saying "maybe," and raising a bit of hope, is not a good approach. For more on this read, my article "Can dog aggression be cured once and for all?

A dog behavior professional making claims such as "your dog's aggression will be fixed, guaranteed" therefore, should raise a big red flag. Often, these so-called "professionals" use harsh, training techniques often involving shock collars. Because, they're aware of the fact that punishment is prone to fallout, they will often back up their training with free follow-up sessions.

If you are wondering about the prognosis of your aggressive dog, there are several factors to keep in mind. And it's not only about your dog. Several other factors revolve around other things that are not related to your dog. This article will tackle a few factors that come into play when it comes to a dog aggression prognosis. Of course, each dog is differently, so the following paragraphs, need to be interpreted with a grain of salt.

Aggression Prognosis in Dogs

So you know you own an aggressive dog. Next, you may contact a dog behavior professional who will ask you several questions. The answers to these questions can help him/her gain a better assessment for his/her case study. While it's true that some professionals will not dig much deep into the issue because they believe that the underlying cause of aggression is not relevant since the "treatment" protocol remains the same, many professionals feel that a deep assessment reveals many crucial elements that are detrimental on the behavior modification outcome.

So what's the prognosis for an aggressive dog? As promised, we'll take a look at some factors, the following address both aggression towards humans (inter-specific aggression) and aggression towards dogs (intra-specific)

Smaller dogs have a better dog aggression prognosis compared to larger ones.
Smaller dogs have a better dog aggression prognosis compared to larger ones. | Source

Dog Aggression Prognosis

Obviously, aggression towards humans is taken much more seriously than aggression towards other dogs. Owners of dogs aggressive towards people need to really put an extra effort in finding a reputable dog behavior professional with years of experience. A behaviorist such as a board-certified veterinary behaviorist or a certified applied animal behaviorist are good option. You may want to skip your vet or the average pet store pet trainer for a serious issue as such. Next, we'll see some factors to consider when it comes to a dog aggression prognosis.

  • Owner's Goals

Do you have a hard time accepting your dog's aggression? What are your expectations? As a dog owner, you may wish your aggressive dog would behave just like your next door neighbor's social butterfly pooch. Don't compare your dog with other dogs and don't fall into the trap of setting unrealistic expectations. A good part of the outcome of dog behavior modification relies on an owner's expectations. If a dog behavior professional tells you that there is no cure for aggression, you must accept that and stop dreaming of Cujo morphing into Good Dog Charles.

  • Medical Causes

Even before starting behavior modification, a reputable dog behavior specialist will ask you to have your dog see a vet to rule out medical causes for dog aggression. If an underlying medical problems is found, the prognosis is very bright, since often the aggression dissipates the moment the medical cause is taken care of. Of course, on the contrary, if the medical cause is not treatable, the prognosis can be relatively poor.

  • Bite History

The prognosis of inter-species aggression has a poorer prognosis if your dog has a bite history, and the bite level of your dog can also tell a whole lot about how things may turn out. Dogs with high bite levels, tend to have a poorer prognosis in respect to dogs who have more bite inhibition. See the bite table below for a better idea on dog bite levels.

  • Onset of Behavior

Nipping a behavior in the bud is crucial when it comes to an aggressive dog's prognosis. The earlier,the better. The more a dog engages in aggressive behavior, the more he'll revert to that aggression. Dog aggression easily becomes a habit and the chemicals released in the brain can make reverting to aggression similar to an addiction. Also, the more a behavior is rehearsed the more it is reinforced and the bigger chances for it to generalize.

  • Level of Control

When your dog manifests the first signs of aggression, is he capable of gaining his composure back if you give him a command? or is he totally oblivious to your commands? Good control has a better prognosis than a totally out of control dog over threshold. How trainable your dog is and how well he responds to food is important. Does your dog like to be with you or is independent? Aloofness can have a lower success rate. Also, are you able to predict what triggers the aggression? If you know your dog doesn't like people wearing hats, you are better in control of the situation compared to a dog that doesn't follow a specific pattern. If your dog has a long history of aggression, your dog has generalized his fear to a variety of other stimuli.

  • Household Members

The prognosis for dog aggression lowers considerably if there are young children in the household. Many dogs are re-homed because they are under too much stress due to the presence of young children. Many times, there's just too much at stake because the risk of a dog biting a child are too high. If there are elderly members, handicapped or disabled members, the prognosis can be also poor.

In the case of aggression among dogs living in the same household, the prognosis also lowers especially when proper management is not feasible. If a larger dog attacks a smaller dog, predatory drift may be at play and because this behavior is instinctive and the harm done to a small dog is easily fatal, the prognosis tends to be poor.

  • Dog's Size

Size does matter when it comes to a dog aggression prognosis. Of course, any dog can bite, but it's obvious that a molosser dog can certainly do much more damage than a toy dog. This explains why you never see headlines of little dogs mauling people.

  • Methods Employed

Harsh training methods can really put a dent on the prognosis. Indeed, punishment based techniques can cause fallout and can even exacerbate the aggression problem. It's important to find a reputable dog behaviorist who employs science-based methods that aren't harsh or based on coercion. Finding a good behavior professional really goes a long way.

Last but not least, a dog owner's financial situation and time constraints can also play a role in the prognosis of dog aggression. Countless dog owners put a dog to sleep because they cannot afford having the dog undergo extensive health testing to rule out health problems, and/or the costs associated with seeking help from a dog behaviorist.

Dog Bite Levels

  • Level 1: Air snap, dog doesn't make contact with the skin. Dog engages mostly in ritualized aggression.
  • Level 2: Single bite. The dog's teeth makes contact with the skin but does not puncture it. There may be nicks and slight bleeding though due to the teeth's lateral action.
  • Level 3: Single bite. The dog's teeth punctures the skin, but the puncture wound isn't deeper than half of the length of the dog's canine teeth. If the victim pulled away, there may be lacerations from the teeth's lateral action..
  • Level 4: Single bite. The dog's teeth cause puncture wounds that are deeper than half of the length of the canine teeth. There may be bruising after a few days.
  • Level 5: Multiple bites with level 4 puncture wounds.
  • Level 6: Victim dead.

Thankfully, most dog bites belong to level 1 and 2 bites. These fellows generally have quite a good prognosis, according to veterinarian, author and trainer Dr. Ian Dunbar. Level 3 prognosis is good to fair, but "treatment' is more extensive and owner compliance is important. Level 4 dog biters are very dangerous and the prognosis is poor because of the associated risks. Dog behavior professionals may ask you to sign a waiver that you acknowledge the risks and take full responsibility. Dogs are managed strictly. Level 5 and 6 biters are extremely dangerous and euthanasia is often recommended.

* Note: this bite scale applies to bites towards humans, obviously it is just a guideline and doesn't apply in the same matter to bites towards other dogs as dogs have tougher skin and fur.

Disclaimer: this article is not to be used as a substitute for professional behavioral advice. If your dog is aggressive make safety top priority and consult with a dog behavioral professional. By reading this article, you accept this disclaimer.


The Canine Aggression Work Book, James O' Heare

APDT, Dr. Ian Dunbar's Bite Scale

Alexadry © All Rights Reserved, do not copy.


    0 of 8192 characters used
    Post Comment
    • Lipnancy profile image

      Nancy Yager 

      6 years ago from Hamburg, New York

      These bite levels are sort of scary. I can understand why some dog owners are not equipped to deal with them.

    • alexadry profile imageAUTHOR

      Adrienne Janet Farricelli 

      6 years ago

      Thanks for stopping by Monis Mas! What often looks like aggression is often caused by fear, and this is why gentle, approaches work best for behavior modification.

    • Monis Mas profile image


      6 years ago

      Voted up and interesting. Your articles are so well researched, it is a real pleasure to follow you, dear alexadry.

      This little dog on the first photos looks do scared, poor baby.

    • alexadry profile imageAUTHOR

      Adrienne Janet Farricelli 

      6 years ago

      Hisandhers, stop by my hubs on behavior modification for aggressive dogs. In particular look for "open bar closed bar, counterconditioning and desensitization, threshold levels and my article on conditioned orienting response. These are all positive training methods that help change the dog from the inside out, best wishes!

    • alexadry profile imageAUTHOR

      Adrienne Janet Farricelli 

      6 years ago

      Clucy, I have had clients contact me for help because they got bit in the process of using "Cesar's Ways". Alpha rolls, collar grabs, e-collars and the bite thing he does with his hands are a recipe for disaster. That's why he gets bit so often. Since most aggression is based in fear, it's natural for dogs to become defensive when approached in such a way. I am happy you found a positive way to help your girl and turn things around!

    • Clucy profile image

      Kristin Tamke 

      6 years ago from Frederick, MD

      I adopted a puppy who was abused and started to turn very aggressive. I contacted trainers who told me she was 'too far gone in aggression' to turn back. I then sought out alternative healing and methods, and with positive training, her aggression completely went away.

      Ceasar is very scarey in his training methods boardering on abuse.

      Victoria Stillwell is very good and shows positive training technique.

    • hisandhers profile image


      6 years ago from Toronto, Ontario, Canada

      Great hub! My dog has recently started exhibiting aggressive behavior towards other dogs and I have been trying to educate myself as much as I can. I particularly enjoyed the breakdown of the different levels of biting. I'm glad to see that my dog is only at a Level 1. There's hope for him yet!

    • Eiddwen profile image


      6 years ago from Wales

      Oh so interesting and very useful to many dog owners I am sure.

      Enjoy your day.


    • alexadry profile imageAUTHOR

      Adrienne Janet Farricelli 

      6 years ago

      Thanks for stopping by Dr Mark. It's like comparing apples to oranges. Cesar Millan has no formal professional education, he's not a trainer and can't call himself a behaviorist, and he's definitively not a 'dog psychologist," he's basically a self-taught guru. I see him more as a charming guy that knows how to run a show and draw an audience. Most of his shows show dogs reduced to a zombie-like state that he has the courage to call"calm submissive". His lack of knowledge about dog body language and learning theory makes me cringe. Patricia McConnell is a whole different story, she has an education, she has a PhD, and is a Certified Applied Animal Behaviorist. If I had a dog with a behavioral problem, that's who I would see. Thanks for the votes up!

    • DrMark1961 profile image

      Dr Mark 

      6 years ago from The Atlantic Rain Forest, Brazil

      I have enjoyed many of the Cesar Millan videos but that is one problem I have with that trainer--unlike Patricia McConnell and other realistic behaviorists he will not admit that some dogs have a poor prognosis. If a dog will not bite me, that does not mean the dog is cured, and like you mentioned, factors like little kids in the household may set the dog off.

      Interesting article. Voted up and shared.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
    ClickscoThis is a data management platform studying reader behavior (Privacy Policy)