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Dog-to-dog

Dog-to-dog aggression and leash reactivity

Whether it's a lunging mess on walks or two dogs at home who can't get along, here's how to understand it and move forward.

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Two dogs standing together beside a wooded lake

Why it happens

  • Fear or poor early socialization
  • Frustration on leash (the leash prevents greeting)
  • Resource guarding between household dogs
  • Pain or illness
  • Rough play that escalates
  • Genetics and temperament

Leash reactivity: what helps

  1. Create distance from triggers so your dog stays under threshold
  2. Reward calm behavior and looking at you
  3. Use a well-fitted harness and a standard leash
  4. Avoid dog parks and greetings for now
  5. Teach 'let's go' to turn and walk away
  6. Get professional help for a structured plan

When dogs in the same home fight

Household fights can escalate quickly and injure both dogs and people. Separate the dogs with gates and doors when unsupervised, avoid triggers (food, toys, doorways), and consult a veterinary behaviorist or credentialed behavior consultant. Early help improves the odds.

Reach out

You don't have to figure this out alone.

Tell us what's happening. There's no judgment here. If you'd like, we'll pass your request to independent behavior professionals near you who work with aggression and reactivity. It's free and confidential on our end, and you're under no obligation.

  • No judgment, ever
  • Free to request, no obligation
  • Independent behavior professionals, not affiliated with this site
  • If someone is in immediate danger, call 911

My Dog Is Aggressive is an independent information resource, not a training company. We don't guarantee any trainer's availability or results.

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