Understanding the Rise in Canine Reactivity Post-Pandemic

Following the COVID-19 pandemic, clinical animal behaviourists across the UK have seen a significant increase in cases of canine reactivity

In the years following the COVID-19 pandemic, clinical animal behaviourists across the UK have seen a significant increase in cases of canine reactivity. From barking and lunging at other dogs, to difficulty coping in busy environments, these behaviours are not simply a result of "bad training"—they are often rooted in the experiences dogs had during lockdown.

As professionals working to improve dog behaviour and welfare, it’s crucial we understand what’s going on beneath the surface of this rise in reactivity and how we can help both dogs and their humans navigate it.

Why Are So Many Dogs Reactive Now?

1. Lack of Early Socialisation Opportunities
Many dogs who were puppies during lockdown missed out on the critical early socialisation period. Normally, puppies would encounter a range of people, dogs, sounds, and environments. Instead, they were largely confined to one household, seeing the same few people and routines day after day. This lack of exposure can lead to fear or overstimulation when faced with novel situations later in life—classic triggers for reactive behaviour.

2. Overwhelm in a Busy World
Post-lockdown, public spaces became crowded again. Dogs who hadn’t built the confidence to navigate busy parks or high streets were suddenly thrust into these environments. Without gradual exposure, even previously calm dogs may become reactive when they feel overwhelmed or unsafe.

3. Heightened Emotional Sensitivity
Some dogs became more emotionally sensitive after spending extended periods in quiet, predictable environments. As life became louder and more chaotic again, they struggled to adjust. Barking, growling, or lunging can be a way of coping with stress when dogs feel they have limited control or escape routes.

What Does Canine Reactivity Look Like?

Reactive behaviour isn't always aggressive. It may include:

Barking or lunging at dogs, people, or vehicles
Growling or snapping when approached
Freezing or refusing to walk in certain areas
Whining, pacing, or high arousal on lead

These behaviours are often driven by underlying fear, frustration, or anxiety, and can become worse if punished or misunderstood.

How Can a Clinical Animal Behaviourist Help?

As a clinical animal behaviourist, my role is to assess the full picture—your dog’s history, their emotional state, the environment, and how they learn. Together, we develop a tailored, science-based behaviour modification plan.

A qualified behaviourist can:

Identify the root cause of your dog’s reactivity
Rule out medical factors contributing to behaviour
Design a plan using positive reinforcement and desensitisation techniques
Support both you and your dog through the process

It's important to note that reactivity doesn’t resolve overnight. It requires time, patience, and a compassionate understanding of your dog’s individual needs.

Moving Forward with Empathy

The pandemic affected all of us—including our dogs. If your dog is struggling with behaviour that feels out of the blue or hard to manage, know that you’re not alone, and that help is available.

Reactivity is not a reflection of failure—it's a form of communication. With the right support, you and your dog can find a more peaceful way forward.

If you’re concerned about your dog’s behaviour, or if daily life is becoming difficult for you or your pet, please don’t hesitate to get in touch. As a registered clinical animal behaviourist, I’m here to help.

If you're struggling with any aspect of your dog's behaviour Get in touch with Matty now!
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This blog is provided for general information purposes only and does not constitute behavioural advice and is not a substitute for professional behavioural and training advice. Always seek advice for you and your dog from a qualified behaviourist or trainer if your dog has behaviour problems or requires training.