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How To Introduce A New Dog To Your Existing Pet Successfully (Part 35)

Introducing a New Dog to Your Existing Pet: A Step-by-Step Guide

For many dog owners, the arrival of a new furry friend is met with excitement and anticipation. However, introducing a new dog to an existing pet can be a challenging process, especially for those with multi-pet households or breed-specific dogs. In this article, we’ll provide you with actionable tips and product recommendations to help make the transition as smooth as possible.

Before the Introduction

1. Prepare your existing pet: Before bringing home the new dog, ensure your existing pet is well-cared for, fed, and exercised. If your existing pet has any health issues or behavioral problems, consult with a veterinarian to rule out any potential risks.
2. Update vaccinations: Make sure both pets have up-to-date vaccinations to prevent the transmission of diseases.

The Introduction Process

1. Keep the dogs separated at first: Keep the new dog in a separate room from your existing pet for the first few days. This allows you to observe their behavior, body language, and scent marking.
2. Use pheromones: Use synthetic pheromone products like Adaptil or Dog Appeasing Pheromone (DAP) to calm both dogs. These products mimic natural canine pheromones, helping to reduce stress and anxiety.
3. Use visual barriers: Once the new dog seems comfortable in their separate room, start using a baby gate or a barrier to block your existing pet’s view of the new dog.
4. Swap scents: Swap the bedding, toys, or blankets between the two dogs to help them become familiar with each other’s scents.

Gradual Face-to-Face Introduction

1. Choose a neutral area: Select a neutral room or area where both dogs can meet without feeling territorial or protective.
2. Use leashes and harnesses: Keep your existing pet on a leash or in a harness while introducing them to the new dog. This allows you to control the introduction process and prevents any sudden movements.
3. Monitor body language: Watch for signs of stress, fear, or aggression from both dogs. If you notice any of these symptoms, intervene immediately and separate the dogs.

Additional Tips

1. Supervise interactions: Always supervise interactions between the two dogs, especially in the early stages of the introduction process.
2. Reward calm behavior: Positively reinforce calm behavior in both dogs with

Written by: Dr. Sarah Mitchell, Small Animal Veterinarian

Last Updated: May 2026

Our Editorial Standards | Review Methodology | Affiliate Disclosure

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Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 38)

Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 33)

Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 38)

Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 33)

Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 38)

Related: How To Introduce A New Dog To Your Existing Pet Successfully (Part 33)

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