Dog Aggression Toward Other Dogs

Inter-dog aggression is a common behavioural problem with significant welfare implications for the dog displaying aggression and for dogs on the receiving end.

Key Facts

Inter-dog aggression is one of the most common reasons dogs are surrendered to rescue centres
Fear-based reactivity accounts for a significant proportion of cases previously labelled aggression
Early socialisation (weeks 3-12) is the most critical period for developing positive dog-dog relationships
Punishment-based training for aggression often worsens the underlying fear and anxiety
Breed is a poor predictor of individual dog aggression compared to history and socialisation
Successful management typically involves behaviour modification, environmental management and sometimes medication

Welfare Considerations

Dogs displaying inter-dog aggression often suffer from chronic fear and anxiety that underlies reactive behaviour. Traditional approaches that used punishment to suppress aggression frequently failed to address the emotional cause and often made behaviour worse by increasing fear. Evidence-based approaches using counter-conditioning, desensitisation and management - combined with veterinary assessment for anxiety medication when appropriate - achieve better welfare outcomes for all dogs involved. Surrendering rather than investing in professional behaviour support is often unnecessary with appropriate help.

What You Can Do

Seek a qualified animal behaviourist (certificated through ABTC or equivalent) for inter-dog aggression
Never use punishment, prong collars or electric shock for reactive behaviour
Ask your vet about anxiety medication as part of a behaviour modification programme
Manage the environment to reduce exposure to triggers while working on rehabilitation
Support rescue centres specialising in dogs with behaviour challenges