Is My Dog Reactive? 5 Signs You Shouldn't Ignore

Reactivity is one of the most misunderstood behaviours in dogs. Most owners assume their dog is aggressive, badly trained, or just 'difficult'. The reality is usually very different. A reactive dog is a dog that's struggling to cope with something in their environment — and they're telling you about it the only way they know how.

So how do you know if your dog is reactive? Here are five signs that are easy to spot once you know what to look for.

1. Lunging and Barking on the Lead

This is the most obvious one. Your dog sees another dog, a person, a bicycle — and they explode. They lunge forward, bark, and pull so hard you're worried they'll slip their collar. This isn't your dog being 'naughty'. It's a stress response. They're either frightened and trying to create distance, or they're frustrated and over-aroused.

2. Fixating on Triggers

Before the explosion comes the stare. Your dog locks onto something — another dog across the field, a jogger approaching — and they go completely still. Their body stiffens, their ears go forward, and they stop responding to you entirely. This is called 'trigger stacking' and it's the warning sign that a reaction is about to happen.

3. Inability to Settle on Walks

A reactive dog rarely has a relaxed walk. They're constantly scanning, pulling in different directions, sniffing frantically, or refusing to move at all. The walk feels like hard work for both of you. This isn't because your dog doesn't enjoy walks — it's because they're in a constant state of heightened arousal.

4. Over-the-Top Greetings

Not all reactivity looks like aggression. Some reactive dogs are 'frustrated greeters' — they desperately want to get to other dogs or people and lose all self-control in the process. They whine, spin, pull, and bark. It might look friendly, but it's still reactivity. The dog has no ability to regulate their emotional state.

5. Recovery Time After Incidents

After a reaction, how long does it take your dog to calm down? If they're still panting, pacing, or refusing food 20-30 minutes after seeing a trigger, that's a sign their stress levels are chronically elevated. A well-adjusted dog might startle but recovers quickly. A reactive dog stays in that heightened state for much longer.

What to Do About It

The good news is that we can help you with your dogs reactivity. It requires a structured approach — understanding your individual dog's triggers, their threshold, and building a training programme that addresses the root cause rather than just suppressing the symptoms.

If any of these signs sound familiar, we'd recommend booking a free 15-minute phone consultation. We'll talk through your dog's specific situation and advise on the best next steps — no pressure, no hard sell.