Adrienne is a certified dog trainer and former veterinarian assistant who
partners with some of the best veterinarians worldwide.


Introducing Puppies to Older Dogs

Introducing a new puppy to an older dog is not a simple task. Just having the
puppy trot into the home and letting the two meet and greet (while keeping
fingers crossed) won’t usually work. A proper introduction takes time and
finesse, but it’s ultimately worthy if you want to heighten the chances for
success and make the whole process smoother.

Let’s face it: Getting a new puppy is often a very exciting time, and it’s
easy to forget that our resident dogs may not be as excited as we are. We
often assume that dogs are social animals, and as such, we expect them to
accept any other dogs into the home as readily as we do.

Perhaps we may have also dreamed of a new puppy rejuvenating our older dog and
bringing more spark into his life. Not so fast…

As a dog owner, it’s important to understand how your resident dog may truly
feel about your newest addition. You’ll need to also pay close attention to
your dog’s body language and consider the risks associated with suppressing
your dog’s means of communication.

There are several tricks of the trade to help introductions go a little
smoother. Scent, for example, is a key element that can be beneficial for a
good intro and equally important is providing boundaries and safe zones to
prevent your older dog from getting too overwhelmed during the acclimatization

If you haven’t yet gotten your new puppy, you may also find it helpful to
learn what are the best combinations for older dogs and puppies. And in some
cases, you may need to carefully evaluate whether perhaps your dog is just too
old and is better off being granted a peaceful retirement with no obnoxious
puppies in it.

Advanced planning is therefore a must if you want to minimize hard feelings
and the chances for squabbles.


1. Understand Your Older Dog’s Feelings

If you have owned an older dog for quite some time, and he has a history of
being “the only dog,” it may be difficult for him to come to terms with a new
addition. Don’t expect him to wear a party hat and blow a horn the day the
puppy arrives home. This doesn’t mean you have made a bad choice, it just
means that your older dog will likely need some time to “assimilate and
digest” the novelty.

When you own an older dog for some time, and he has a history of being the
“only dog,” he has been enjoying some unique perks along the way such as
getting all the attention and not having to share toys with anybody.

It takes quite some adjustment for these dogs to get used to all the changes
and shifts in routines associated with a new addition. On top of this,
consider that your older dog has aged, and if he is already a senior, he may
no longer be as interested as he was in the past in rambunctious play.

Even if your dog has a history of liking other dogs, and has impeccable social
skills, expect some mixed feelings, just as it happens with children when they
gain a new brother or sister. While your dog may have done well in the past in
meeting new dogs at daycare or at the dog park, consider that these are short-
lived encounters compared to the long-term, perpetual presence of a new dog
sharing the home.

Understanding your dog’s feelings is important so that you are prepared in
advance on what to expect. It, therefore, won’t come much as a surprise that
moment when your older dog growls or snarls at the newest addition. In such a
case, the older dog should never be admonished for manifesting his feelings.

2. Avoid Punishing Your Dog’s Growl

Why should punishing a dog for growling be avoided at all costs? Firstly
because we want our dogs to manifest their emotions. As Yamei Ross states,
“Punishing a dog for growling is like taking the batteries out of your smoke
detector. You don’t want to hear the noise, but the danger is still there.”

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We therefore want our dogs to communicate to us when they feel uneasy about a
situation because a growl is ultimately a warning.

Punishing a dog for growling may lead to a dog that bites without warning. The
dog has learned that it’s not safe to communicate and will suppress this
important piece of information. This is like living with a ticking time bomb
that you’ll never know when it will blow.

On top of this, it’s important to consider that a growl is often a sign of
stress. For an older dog set in his routines, any change in his environment
(such as the intrusion of a new puppy) will likely cause stress to some
extent. Perhaps he’s fearful, and perceives an invasion of space or threats to
his resources.

If you admonish your dog for growling, you are adding stress to an already
stressful situation. This, of course, is counterproductive. If dogs could
talk, perhaps they would say something along these lines: “Not only is this
pesky puppy in my home but now my owner is also acting in an unpredictable way
when the puppy is around me. This just can’t be good.”

So, what should we do if the older dog happens to growl at the puppy? We
should acknowledge it and take a mental note of what evoked the growling. Was
the puppy close to the older dog’s toys? Was he getting too close to his bowl
when he was eating? Was he acting too hyper for the older dog’s taste?

When we first introduce a new puppy to an older dog, we want to really
minimize the chances of putting the older dog into situations that cause
tension to build up.

3. Learn to Recognize Possible Signs of Tension/Anxiety

These signs indicate that your dog/dogs are uncomfortable and there is a need
for intervention to prevent aggressive displays.

  • Tense mouth
  • White of the eyes showing
  • Yawning
  • One paw raised
  • Dog licking his chops
  • Excess licking of paws
  • Scrolling the fur
  • Direct stare
  • Turning the head away
  • Tail between legs
  • Ears back
  • Panting
  • Refusing food


4. Start With “Scent Acquaintances”

It is best to begin all “acquaintances” through scent before the dogs visually
see each other. If the puppy is still at the breeder or at the shelter, it
helps to bring home a blanket that has the puppy’s scent and let your dog get
used to it. At the same time, the puppy can be provided with a blanket that
has your older dog’s scent on it.

When introducing a new puppy to an older dog, it is always best to introduce
it on neutral grounds. This is a key element that helps prevent the onset of
surprise (and shock!) that comes with just planting a new puppy inside the
home without no warning. Introducing on neutral grounds requires that you
enlist the aid of a helper.

5. Introduce on Neutral Grounds

Neutral grounds mean just that, a place where the dogs have no strong
emotional attachments and not much history. Normally, dogs should meet on a
walk or at a park, but with young puppies this option isn’t feasible due to
the risks of infectious diseases in young puppies who haven’t finished their
series of shots. Suitable meeting grounds for young puppies may include the
breeder’s home, the shelter where the puppy is kept, or a friend’s home (with
no history of owning sick puppies in the past year) with a large fenced yard.

Ideally, you should exercise your older dog prior to the introduction so that
he is in a more relaxed state. If your dog is already stressed from noises or
other things in his environment, he may be more likely to react negatively.

If you must take the puppy home, have a crate for the puppy and keep it as far
as you can from your older dog once in the car. In the car, you can use
calming aids described in the acclimatization process section.


6. Provide Boundaries and “Safe Zones”

Once home, you still want to keep the puppy and older dog in separate areas
for a good part of the day. This is for safety and for the sake of allowing
the older dog to get gradually acclimated to the new puppy.

As mentioned, adult and older dogs (especially dogs over the age of five) may
no longer be interested in engaging in rambunctious play as they used to in
the past. Some older dogs may even suffer from orthopedic problems, and the
last thing they want to endure is being pestered by a puppy with poor social
skills and too much energy.

It’s important for the older dog to have a “safe zone” to retreat without
being constantly pestered by an energetic puppy. If the older dog is
interested in play, but not of the overly rambunctious type, it’s best to
allow play only once the puppy has already been exercised so that he’s not
bouncing off the walls.

Things can get particularly stressful for older dogs who haven’t been
socialized much with puppies in the past or who simply haven’t been around
puppies for quite some time. Hence, the importance of establishing some

Boundary-wise, there are several options. You can use a baby gate, x-pen, or a
room to allow safe separation and allow your resident dog time to relax and
unwind from the overstimulation. You can also keep the puppy tethered to
something stable and safe so that your older dog is free to decide when to
enter the pup’s zone to interact and then be free to leave.

Depending on several factors, these may be temporary or permanent solutions.

It is wise to erect baby gates and x-pens several days prior to the puppy’s
arrival so that the older doesn’t get upset from all these sudden changes.

Boundaries allow dogs the ability to hear and see each other without physical
contact. When not within their boundary enclosures, in the first few days,
both dogs can be kept together in a fenced backyard while being supervised
very closely for signs of tension.

Once the dogs seem very comfortable around one another, they can share some
time indoors, but indoors requires more caution considering that some
locations or tight passages may lead to noisy squabbles or even fights.

Well-adjusted older dogs often teach puppies better social

Well-adjusted older dogs often teach puppies better social manners.

7. Minimize the Chances for Squabbles

During the introductory period, it’s important to minimize the chances for
squabbles. This means keeping toys out of the way, feeding dogs at a distance
or in separate areas, not allowing the puppy to steal your older dog’s
favorite sleeping spot, not giving attention to the puppy when the older dog
can see or hear all the fuss.

This is because we don’t want to add more stress to an already stressful
situation and cause the puppy to assume negative connotations: “Not only is
this puppy invading my home but he is also trying to steal my toys and is
getting more attention than me!”

If your older dog has a history of guarding food, toys, sleeping areas, or
certain locations from you or other people in your family, this is beyond the
scope of this article. Consult with a dog behavior professional using humane,
force-free behavior modification methods.

Mild resource guarding is fairly normal among dogs as long as these criteria
are met: it’s ritualized (just noisy and nobody gets hurt), both dogs have a
good history of bite inhibition, each dog respects the other dog’s claimed
belongings (giving distance as the other dog makes his point) and don’t show
signs of tension or stress (they don’t get to the point of being overly
worried or traumatized).

Also, some food for thought: there are chances the new puppy may too be a
resource guarder, so it’s important to monitor all interactions. If your older
dog or puppy shows trouble signs of resource guarding during the introduction,
play it safe and consult with a professional.

Note: It’s quite normal for an adult dog to “put the puppy in his place,”
when the pup engages in some rude behaviors. Puppies are socially illiterate
and often learn better social etiquette from adult dogs. These adult dog
“lectures” should be mostly ritualized (more noise than anything) and
shouldn’t traumatize the puppy.

Although adult dogs often grant puppies a puppy license, owners must be wary
of older dogs who are intolerant and stressed by rowdy puppy behaviors.
Because it may be challenging at times to tell if the older dog is really
engaging in harmless discipline or if there is something more serious going
on, the intervention of a behavior specialist may be required.


8. Monitor Closely During the Acclimation Process

Some time is needed for the older dog to habituate to the new puppy. Each dog
is different, and therefore it’s best to work at the dog’s pace. Generally, it
takes more time for older dogs to acclimate to young puppies compared to adult
or younger dogs. It may take weeks or even months for both dogs to be
comfortable around each other. Make sure you maintain your older dog’s regular

If your older dog appears tense or has a history of anxiety with changes, it
may be a good idea to invest in some calming aids such as DAP collar or DAP
diffusers and Rescue Remedy. These products work best if introduced days prior
to the new puppy’s arrival so that they have time to become effective.
Relaxing music such as Through Dog’s Ear can help too.

As the days go by, there should be less tension among the dogs. If the older
dog initially showed signs of stress such as growling when the puppy moved or
vocalized, these episodes should be reducing with time. Feeding your older dog
treats or kibble every time he hears the puppy move or vocalize when behind
the baby gate or other barrier may speed up the acclimatization process as he
associates the puppy with good things.

As the dogs get more comfortable with each other, it is possible to introduce
resources such as toys starting with toys that aren’t perceived as very
valuable in dogs with no history of resource guarding.

Lower value food like kibble can be presented as well having the dogs sit
side-by-side and taking turns in feeding one dog first and then the other and
vice-versa. If one dog notices you have treats and shows up, teach him that he
won’t be fed until the other shows up too. Call the other dog if distracted.
This helps form positive associations.

As the puppy matures and all vaccines are given and the vet deems it safe,
both dogs can be walked, but it is best to have one handler for each dog so
that the puppy can learn polite leash manners. If one dog is reactive towards
something, the other dog will likely learn to react too so in these cases it
is best to walk the dogs separately.

9. Consider These Combos for Success

Yes, there is such thing as choosing wisely when you must introduce a new
puppy to an older resident dog. If you have’t yet picked a puppy, you may find
these suggestions helpful.

In general, these are the most compatible combinations:

  1. Puppy and older dog of the opposite sex
  2. Puppy and older dog who isn’t too old
  3. Puppy and older dog of similar size (once puppy is adult)
  4. Puppy and older dog with similar play styles.

Did you Know?

Dogs can learn through imitation, and having your puppy watch your older dog,
can teach him many things. For instance, where to go potty and how to sit
nicely when waiting for a meal.

How Long Will it Take?

In general, it may take around 4 to 8 weeks for resident dogs to get used to
the change associated with a new addition, but it can take up to 6 to 9 months
for both dogs bond and feel comfortable around each other.

With puppies and old dogs, we need to consider the age gap factor so your
older dog may only start feeling more comfortable once your pup has become
calmer due to maturing and his obedience training and social skills improving.

Think along the terms of a grandma being overwhelmed by a toddler who is
pulling at her skirt and screaming, versus an older child who wants to bake
with her and read a book.

How Old is Too Old?

It goes without saying that with very old dogs (like large dogs over 12 and
small dogs over 14) or dogs who are blind or deaf or both, it may be better
waiting to get a new puppy.

Very old dogs may struggle getting away from a boisterous puppy and they may
get very stressed. Even good stress (eustress) can be a lot for an older dog
to endure. An older dog that is blind or deaf (or both) will struggle as he
has no senses to rely on to detect when the puppy is around.

He or she will therefore have a hard time understanding when the puppy is
running up to him, trying to bite him and pawing at him. This can cause
considerable stress at a time when our older dogs should be kept as calm as
possible and enjoying retirement.

It is a known fact that the two most demanding life stages of dogs are the
first few years of their lives and their last few as senior dogs. Dealing with
both at the same time can be overwhelming.

Although tempting to get a puppy with an older dog, it may be just easier (on
us, but mostly on our elderly dogs) opening our hearts and homes to a puppy
once our older dog has passed to better life.

10. Get Help as Needed

As seen, there are several strategies that can help pave the path towards
smoother introductions, but it’s best to be prepared for the worst case

It’s important to realize that not always things may work out well as planned.
An older dog may struggle with a boisterous or puppy or maybe your older dog
was really never sociable in the first place.

If at any time you notice worrisome signs or your older dog is getting more
stressed rather than less, consult with a professional. It is best to nip
problems in the bud rather than waiting for things to get worse and reach a
breaking point where things may no longer be manageable.

A few sessions of behavior modification and some management may sometimes
ameliorate the situation. If things seem too challenging though, at least you
tried all your options before having to re-home the puppy. Although heart-
breaking, this is a better option than having two dogs live in a world of
tension and misery.

A Safety Reminder

This article is not to be used as a substitute for a hands-on behavioral
assessment. If your adult dog shows worrisome behaviors towards your new
puppy, intervene immediately to stop the interaction, keep both parties
separated and consult with a behavior professional to play it safe.

If you are already attached to your new puppy and you’re reluctant to re-home
him, it be worthy a try of consulting with a dog behavior professional. A few
sessions of behavior modification and some management may ameliorate the
situation. If things seem to challenging though, at least you tried all your

This article is accurate and true to the best of the author’s knowledge. It
is not meant to substitute for diagnosis, prognosis, treatment, prescription,
or formal and individualized advice from a veterinary medical professional.
Animals exhibiting signs and symptoms of distress should be seen by a
veterinarian immediately.

© 2018 Adrienne Farricelli