Why Does My Dog Hate Other Dogs?
Dogs are often seen as social creatures, but not all of them are eager to make friends with their fellow canines. If your furry friend displays fear or aggression towards other dogs, it can be concerning and sometimes challenging to understand. In this comprehensive guide, we'll explore the various reasons why your dog might be afraid of or dislike other dogs, along with practical tips on how to manage and address this behaviour.





Canine Socialisation and Behaviour
Understanding canine social behaviour is essential for comprehending why some dogs may be fearful or aggressive towards others. Dogs are social animals with a complex social structure, and their behaviour towards other dogs is influenced by various factors, including genetics, early socialisation experiences, and individual temperament.
Fear-Based Reactions
Fear is a common underlying cause of aggression in dogs. If your dog displays fearful behaviour around other dogs, it may be due to a past negative experience, lack of socialisation during the critical developmental period, or genetic predisposition to anxiety. Signs of fear-based aggression include growling, barking, cowering, or attempting to flee when confronted by other dogs.
Resource Guarding
Resource guarding is another common trigger for aggression in dogs. Some dogs may become aggressive towards other dogs when they perceive a valuable resource, such as food, toys, or attention, to be at risk of being taken away. This behaviour can stem from insecurity, lack of trust, or past experiences of competition over resources.
Territorial Behaviour
Dogs are naturally territorial animals, and some may exhibit aggressive behaviour towards other dogs encroaching on their perceived territory, such as their home or yard. Territorial aggression can manifest as barking, lunging, or even physical confrontation when other dogs approach the dog's territory.
Lack of Socialisation
Proper socialisation is crucial for puppies to develop positive associations with other dogs and people. Dogs that have not been adequately socialised during the critical developmental period (typically between 3 and 14 weeks of age) may exhibit fear or aggression towards unfamiliar dogs later in life. Early socialisation experiences shape a dog's perception of the world and can significantly influence their behaviour towards others.
Breed Predispositions
Certain dog breeds are more predisposed to aggressive behaviour towards other dogs due to their genetic heritage and historical roles. Breeds that were originally bred for guarding, protection, or fighting purposes may be more likely to display aggressive tendencies towards other dogs. However, it's essential to recognise that breed alone does not determine a dog's behaviour, and individual temperament and socialisation play significant roles.
Medical Issues
In some cases, underlying medical issues or pain may contribute to a dog's fear or aggression towards other dogs. Dogs in pain or discomfort may become more irritable and reactive, leading to aggressive displays towards other dogs. It's crucial to rule out any potential medical causes for your dog's behaviour by consulting with a veterinarian.
How to Manage Fear and Aggression
Managing and addressing fear and aggression towards other dogs requires patience, consistency, and understanding. Positive reinforcement training techniques, such as desensitization and counterconditioning, can help modify your dog's emotional response to other dogs by rewarding calm and relaxed behaviour. Additionally, providing a safe and controlled environment for social interactions, gradual exposure to other dogs, and seeking guidance from a professional dog trainer or behaviorist can be beneficial in addressing fear and aggression issues.