Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Introducing a New Dog to the Pack: 10 Vet-Approved Tips

golden retriever puppy yorkie puppy

Introducing a new dog into a home with resident dogs can be challenging. Though dogs are communal animals by nature, these initial introductions can be unpredictable. It’s essential to approach these first few meetings with caution. A poorly planned integration period can be a recipe for disaster, especially when you already have an established pack at home. Read on to find our tips on successfully introducing a new dog to your already-existing pack.

Dogster_Website dividers_v1_Jan 18 2024-03

Before You Adopt a New Dog

Consider the Current Living Situation

Before you think about bringing another dog into your home, you need first to consider how your current dogs get along. If they have a history of fighting or aggression, this may not be the right time to introduce a new dog into your family. The happiness of your current dog should hold precedence over adopting another dog.

If you absolutely must bring another pet into a home that is currently struggling with aggression between dogs, we highly recommend speaking with a canine behavior expert before proceeding with the adoption. They can work with your current dogs and implement behavior modifications that will be necessary before you bring your new pup home.

Cute four months old Jack Russel terrier puppy with folded ears at home
Image by: evrymmnt, Shutterstock

Know Your Dog’s Personalities

Consider whether your resident dogs are a good candidate for a new brother or sister. Dogs that are confident, calm, and friendly toward other dogs are generally better candidates for a multi-dog living situation. Those who are nervous, skittish, or fearful around other dogs may find it difficult to assimilate into a multi-pet household.

Set Realistic Expectations

Know that you cannot force companionship on dogs, especially not right away. Look at your pets becoming “friends” the same way that humans develop friendships. Relationships do not bloom overnight. It takes time, many positive experiences, and trust before we can feel close to someone. The same rule applies to your dogs. Don’t go into this introductory period with a set timeline in your head for how the relationship between your dogs will develop. Be realistic and patient.

Have a Backup Plan

No one can accurately predict how a group of dogs will get along, and sometimes, two dogs despise each other regardless of how you introduced them. Adoption agencies and breeders should have a backup plan available to adopters in the event the dogs do not get along.

Dogster_Website dividers_v1_Jan 18 2024-01-TEST

The 10 Tips for Introducing Your New Dog

1. Start With Scents

Dogs have an extremely fine-tuned sense of smell, so before you even allow your dogs to see one another, introduce the idea of a new dog to your resident dogs and the idea of joining a pack to your new dog with scents.

Before you bring home your new pet, rub them with a cloth or ask the adoption agency or breeder if you can take a blanket they’ve been using to introduce your current pets to this new smell.

dog puppy crate
Image by: Jaclyn VernaceP, Shutterstock

2. Visit the Vet

Before you bring your new dog into your home, make sure both the resident dogs and the new one are up to date on their vaccinations. Unvaccinated puppies are prone to dangerous and potentially life-threatening illnesses, like parvovirus and distemper.


3. Keep Them on a Leash

During the initial introductions, all dogs should be kept on a loosely-held six-foot leash and handled by a separate person. It’s important for every human taking part in this introduction period to be relaxed and calm, as dogs can pick up on your body language and mood. If you’re stressed or anxious about the process, your mood can rub off on your dogs.

dog on collar and leash looking up to the owner
Image Credit: Javier Brosch, Shutterstock

4. Hold the First Introductions in a Neutral Location

Using your home as the introduction area is a recipe for disaster, as your current dogs may feel their territory is being encroached upon. Introduce your dogs face-to-face for the first time in a neutral location that’s unfamiliar to both the resident dogs and the new one.

When the dogs begin to sniff each other, offer happy, high-pitched praise if you notice positive signs from them. After a few minutes, lead them away from one another. All initial interactions should be brief to ensure the dogs don’t have enough time to formulate an aggressive response. Allow them to smell one another, touch noses, and then separate them and engage them in play or obedience exercises for several minutes before allowing another interaction.


5. Don’t Force It

Don’t force any interactions between your dogs. Let them walk near each other for several minutes and take the lead during the first few meetings. If they ignore one another, that’s completely fine.

Lovely yellow pug dog sniffing dogs
Image Credit: ABCDstock, Shutterstock

6. Familiarize Yourself with Canine Body Language

It’s important for you, as the owner of multiple dogs, to know how to read your dog’s body language. Watch carefully for postures that can indicate your dogs are having a defensive or wary response to their new family member. This includes signs such as:

  • Hair standing up on their back
  • Baring their teeth
  • Tensed mouth
  • Growling
  • Stiff legs
  • Prolonged eye contact
  • Yawning

If you notice any of these behaviors, immediately calmly interrupt the interaction by distracting your dog with something else.

However, your dogs will also exhibit positive body language when things are going well. Watch for signs like:

  • Loose body movement
  • Relaxed, open mouths
  • Playful posturing
Dogster_Signs of a Happy Dog_Infographic_v1-2 FINAL_Mar 13 2024
You are free to use this image but we do require you to link back to Dogster.com for credit

7. Remove Familiar Items

Before you bring your new dog to your home for the first time, please remove all of the resident pets’ belongings, like their toys, food bowls, and beds. This is to prevent any resource guarding or territorial behavior from your current dogs. You’ll be able to return their prized possessions back to them in several weeks and, at the same time, provide your new pet with their own toys, bowls, and beds. Until then, however, only give your dog’s toys when they’re in separate areas or their own crates to prevent tiffs.


8. Keep Them Separate & Set Boundaries

When your new dog comes into your home for the first time, keep the resident dogs in a separate area. Use a leash to walk the new pup in your home to show them around, but then confine them to a completely separate area for the first few weeks.

Use baby gates and doors to close off rooms to your pets to help set boundaries. After the initial walk-around, keep your new dog behind a closed door or baby gate to allow them to get used to their new home.

Feed your pets and set up beds in separate areas to prevent resource guarding.

After a few weeks of being separated and having interactions in a neutral space, you can begin extending the time your dogs spend together in what will soon be their shared home.


9. Supervise Playtime

As your new dog gets comfortable in their home, you can begin to implement play sessions with them and the resident dogs. Supervision is vital at this point in the introduction to ensure no dogs get too excited or aggressive. Interrupt any play that looks like it may get aggressive, and offer praise and rewards when the dogs play well together.

Two dogs playing rough in backyard
Image Credit: sophiecat, Shutterstock

10. Know How to React if a Fight Occurs

Even though dogs are communal animals, fights can occur. If one happens, you must stop it as soon as possible to prevent injury. However, never put yourself in the middle of a dogfight. Instead, try to distract them with a loud noise or by throwing something soft, like a pillow, at them to break them up. The moment they’re distracted, get a hold of one of them and separate them until they’ve had a chance to calm down.

A fight doesn’t mean that they can never be introduced again. Remember, even humans get into fights with their loved ones sometimes. It does mean, however, that they’ll need to be separated for a short period until the tension between them has fizzled out.

Dogster_Website dividers_v1_Jan 18 2024-03

New Puppy Checklist

Click here for a downloadable PDF.

Dogster_Website dividers_v1_Jan 18 2024-03

Final Thoughts

Though it may seem like a lot of preparation, work, and time, introducing your new dog properly to their new pack is a non-negotiable step to successful integration. Rushing the introductory period can be a recipe for disaster and may lead to aggression, injuries, and even failed integration altogether.

With patience and time, sharing your home with two or more dogs can be an extremely rewarding experience. Dogs are naturally communal animals and most generally enjoy keeping company with others of their species.

See also:


Featured Image Credit: Taryn Rahl, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Summer Safety Tips for Dogs: 7 Vet-Verified Ways to Stay Safe

Is there any better way to enjoy the warm months of summer than with your best friend? Summer is ideal for walks in...

Can Dogs and Cats Talk to Each Other? Cool Vet-Reviewed Interspecies Facts

It’s rare to find a cat and dog on speaking terms, but the communication between your pets might surprise you despite the language...

8 Dog-Friendly Hiking Trails in Arizona (2026 Guide)

From pastel-colored rock formations to the Grand Canyon itself, Arizona is home to some of the world’s most gorgeous natural landscapes. If you’re...

Your Dog Has Diarrhea? Here Are 10 Foods Vets Say Actually Help

Few things make pet parents worry faster than the sound of a gurgling tummy, especially when followed by a messy surprise on the...

More related

Torn ACL in Dogs: Vet-Explained Signs, Causes & Treatment Options

Many of you may already be familiar with the common human injury widely known as an “ACL” (anterior cruciate ligament) tear. However, far...

What to Feed Dogs With Itchy Skin: Our Vet Explains Ideal Options

It is an all too familiar sound and experience when you hear your dog scratching, licking, or nibbling at their skin or paws,...

Why Is My Puppy Incontinent? Vet-Reviewed Canine Health Facts

Potty training a puppy can be frustrating all on its own. What makes it even worse is when complications come along with it....

How I Rescued A Greek Stray Dog: Hela’s Story

Hi, I’m Dr. Maja! Read my introduction to learn more about me and my two crossbreed dogs, Lava and Hela. When I went...

Keep reading

How Often Should Puppies Eat? Vet-Approved Guide & Scheduling

Raising puppies is not for the faint of heart. It’s a tough gig, not unlike raising a newborn baby, but it is extremely gratifying, rewarding, and a whole lot of fun. One of the most important parts of successfully caring...

puppies eating from bowls together

11 Best Dog Foods Made in the USA in 2026 – Reviews & Top Picks

With so many quality dog foods on the market today, dog owners rely on several criteria to help them decide between them. For some, the first question to answer is where the food is manufactured. With several high-profile incidents of...

brown dog sniffing a dog food

11 Best Dog Foods for Mini Goldendoodles in 2026 – Reviews & Top Picks

As a dog owner, pet nutrition is something you’re likely taking pretty seriously. As pet nutrition continues to develop and improve, the focus has turned to what nourishment will eliminate health issues and create a long and full life for...

Goldendoodle sitting near the pier

How Long Can a Dog Go Without Food? Vet-Verified Facts & FAQ

If your dog hasn’t been eating well, it’s normal to be concerned, and if it’s been a while since your companion seemed interested in food, you might be worried about how long it’s safe for a dog to go without...

sad golden retriever dog beside food bowl on the floor with no appetite

Can Dogs Eat Fritos? Vet-Reviewed Facts & FAQ

Dogs aren’t well-known for their pickiness, and it’s up to owners to monitor the food they can access. Just as you wouldn’t eat a bowl of Purina, your pup shouldn’t be making a habit of feasting on the foods we...

Can Dogs Eat_fritos

Why Do Dogs Eat Cat Poop? 5 Common Vet-Reviewed Reasons

It isn’t odd for dogs to eat cat poop, though the behavior may be quite disgusting in our minds. There are many reasons for this behavior. Most of them are harmless — it’s just something that dogs do. However, there...

Austrian black and tan hound dog eating the grass

11 Best Dog Foods for Maltese Tear Stains in 2026 – Reviews & Top Picks

Tear stains are caused by excessive tear production or an inability to adequately dispose of excess tears. While it is true that certain breeds, including the Maltese, are more likely to exhibit tear stains, that doesn’t mean you have to...

Maltese dog eating from a bowl

Can Dogs Eat Dairy? Vet-Verified Nutritional Guide & FAQ

If your dog has ever expressed interest in sharing your bowl of ice cream or glass of milk, you know how tough it can be to say “no” to them. But is sharing dairy products with your dog safe? Unfortunately,...

Can Dogs Eat Dairy