Dog aggression

Dog Aggression; A Remedy

We would like to introduce our guest writer Holly Barry who has provided us with todays article on how to recognise and remedy dog aggression.

“Holly Barry is currently working as a Digital PR Executive in Hertfordshire. A recent Journalism graduate from Brunel University in West London, Holly hasn’t always found herself in the digital capacity. Her first spell of work experience saw her time spent at her local vets for two weeks, assisting the Veterinary nurse and shadowing the Head Veterinary Surgeon. As a past time, Holly likes to visit her stables back at home; Guiness Park Farm, and walk her grandparents red and white setter – Rubie”.


All dogs have a range of behaviours that they use to cope with stressful situations or perceived daily challenges. Many of these traits are passive in nature, such as the dog moving away from something it feels uncomfortable about, or displaying appeasement, through ways such as rolling over onto its back. However, if the dog continues to feel stressed by a situation, this passivity can quickly turn into aggression.

The triggers for aggressive behaviour in dogs can vary. There are many common patterns, such as food insecurity, boredom, jealousy of family members-particularly new arrivals, and struggling to determine rank in a new environment. Rescue dogs, for example, can often appear to settle in well during the first few weeks in their new home, and can then suddenly start to express symptoms of aggression, as they become confident enough to try to assert their position. For this reason, it’s important to understand how to integrate a rescue dog into your home, and to work to minimise the chances of aggression developing. Whether or not you have a rescue dog, it’s important to understand what might cause a dog to become stressed, and to identify the signs of increasing levels of stress and aggression.

Traits to watch out for

Canine aggression can be divided into a number of different types. These include:

  • interdog aggression
  • dominance behaviour
  • possessive and territorial aggression
  • prey driven behaviour
  • defensive or fear-based aggression

Dividing these types into offensive and defensive behaviours is useful, as the warning signs for each can be very different. Defensive behaviours can include lowering the head, crouching or rolling over, and hanging the tail low or between the legs. The warning signs for offensive aggression, however, are much more confrontational, and include growling, snarling, full eye contact and firm staring, holding the tail and head up, snapping, baring the teeth, and standing in a fixed, rigid position.

Increasing levels of aggressive behaviour can be caused by a number of things, such as reaching sexual maturity, poor breeding, environmental changes, pain or illness and a lack of socialisation and training.

If your dog is showing these signs, it’s important to analyse the situation that triggered the change in behaviour. Is the aggression directed at a stranger or another family member? Does aggression centre around mealtimes, or a favourite toy? Is the aggression only shown towards other dogs, and if so, is it only certain breeds or dogs of one sex that trigger the aggression? Has anything significantly changed within their daily routine?

Working out what is causing the dog to become stressed, will make it easier to form an action plan. This can range from basic desensitisation training that you can do yourself, to calling in a pet behaviour specialist for more advanced training. Of course, if pain or illness is suspected as the cause of aggression, then veterinary treatment could resolve the issue.



It goes without saying that preventing the development of aggression in dogs is far easier than resolving aggression issues once they have developed. Teaching a puppy good socialisation skills from a very early age is essential to produce a balanced, happy dog that can handle all sorts of life experiences in a calm and relaxed manner. Professional training classes are recommended for all dogs, not just for puppies, and can be a fun and stimulating way for a dog to interact with other dogs and people, throughout its life.

Aggression that is linked to sexual maturity can be minimised by having the dog neutered or spayed. This will quickly alleviate aggressive tendencies that are being driven by surging hormones.

Adopting a positive reinforcement strategy when training and handling a dog will help it to stay calm and learn from you. Punishing a dog for bad behaviour or ‘mistakes’ will only increase the dog’s anxiety levels, and could actually be interpreted by the dog as aggression that needs a negative response.

If you know that certain environmental factors trigger aggression in your dog, you can work to minimise these, through gentle training. Or if the dog doesn’t like men, for example, enlisting the help of some calm male friends who have experience with dogs themselves, could help your dog overcome this fear-based behaviour. Some dogs guard their food aggressively, try gently giving him extra tidbits during mealtimes, so that he associates you approaching with something positive, rather than suspecting that you will take his food away.

If your dog is showing aggressive tendencies that you don’t understand, or that you feel you cannot handle, it’s sensible to speak to a professional canine behaviourist. He or she will typically meet with you to observe the dog, particularly in the environment that triggers the aggression. They will then try to work out the underlying reasons for the aggression. The behaviourist will then either make recommendations for you to follow over the following weeks or months, or will continue to work with you in person until a resolution is found.

The risks

It’s common for dog owners to ignore or ‘play down’ aggressive tendencies in their dogs. Many owners learn to ‘cope’ with it, by avoiding certain situations or restricting the dog’s freedom eg-by not allowing it off the lead.

However, recent changes in the law mean that owners could find themselves guilty of a criminal offence should their dog attack another person. This includes incidents in either a public space or on private property. In the most serious of cases, where a dog attack results in the death of the victim, the owner could receive a prison sentence of up to 14 years. Hopefully these tough new laws will help owners understand the importance of recognising canine aggression, and dealing with it before it escalates into a serious problem.

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