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This is an archive article published on January 15, 2025

Why is my dog behaving aggressively?

Aggression in dogs stems from a variety of factors, and identifying the root cause is critical to addressing it effectively

Understand the common causes of aggression in dogsUnderstand the common causes of aggression in dogs (Source: Freepik)

Aggression in dogs is a complex behaviour often misunderstood by pet owners. While it’s easy to attribute a dog’s aggression to a single cause, the reality is that a mix of factors — including genetics, environment, health, and training — usually play a role.

We explore the relationship between aggression and health issues in dogs, including the role of intestinal parasites.

Is aggression linked to deworming?

A common misconception among pet owners is that aggression in dogs may be linked to the deworming process. According to Dr Ishan, Pune Petcare Pro Clinic, aggression isn’t directly caused by whether or not a dog has been dewormed.

However, he said that intestinal parasites, if left untreated, can lead to discomfort, pain, or general irritability in dogs, which may contribute to aggressive behaviour. “When a dog feels unwell or distressed, they may act out more, but this is a symptom rather than a root cause,” Dr Ishan explains.

Discover why dogs eat grass! Explore the possible reasons behind this common canine behaviour, from instinct to digestion, and learn when to seek a vet's advice. Lack of proper training and early socialisation may cause fear or dominance-based aggression. (Source: Pexels)

Common causes of aggression in dogs

Aggression in dogs stems from various factors, and identifying the root cause is critical to addressing it effectively. As per the expert insights from Pune Petcare Pro Clinic, some of the most prevalent causes include:

  • Genetics: Certain breeds are predisposed to more assertive behaviours due to their genetic makeup.
  • Environmental Factors: How a dog is raised, including exposure to abuse or neglect, plays a significant role.
  • Medical Issues: Conditions like arthritis, thyroid imbalances, or infections can lead to pain and irritability, contributing to aggression.
  • Training or Socialisation Problems: Lack of proper training and early socialisation may cause fear or dominance-based aggression.
  • Fear or Anxiety: Dogs that feel threatened or insecure may respond with aggressive behaviour as a form of self-defence.

What should pet owners do?

Dr Ishan recommends pet owners consult a veterinarian to rule out any underlying medical issues contributing to aggression. “Many times, behavioural problems are rooted in health concerns that can be treated or managed,” he advises. For behavioural aspects, seeking help from a professional dog trainer or behaviourist is essential.

He also emphasises the importance of regular veterinary care, including timely deworming, to ensure overall health and well-being. “A healthy dog is a happy dog, and good health significantly reduces the risk of irritability or behavioural issues,” adds Dr Ishan.

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With the right professional guidance and a commitment to your dog’s well-being, you can help them lead a healthier, happier life.


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