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.

5-Month-Old Puppy: What to Expect (Vet-Approved Guide)

Share

young Great Pyrenees puppy is sitting in green grass

How did your little puppy grow up so fast? It’s like you blinked once, and now they’re halfway grown! If your puppy has recently reached their 5-month-old mark, congratulations! You’ve entered into a whole new world of fun and excitement.

There are bound to be plenty of changes, and some will be easier to manage than others. To prepare yourself for what you should expect during this phase of your puppy’s life, keep reading below.

Dogster divider_v2_NEW_MAY_24_

What To Expect During the 5-Month Stage

The 5-month stage comes with a lot of changes, and there’s plenty to prepare for as your puppy creeps closer to 5 months old.

Diet

You shouldn’t need to switch your puppy’s food to an adult diet at this point. Depending on your dog’s health, breed, and size, your vet may suggest an earlier or later transition from puppy food to adult food.

Regardless, as the 5-month-old stage approaches, it is a good idea to begin researching adult foods so that the transition, when the time comes, will be seamless. Consulting your vet is a great way to decide which adult foods are best for your dog.

Another way is to look for foods approved by the Association of American Feed Control Officials (AAFCO), so you know what diet will provide for all of your dog’s nutritional needs.

siberian husky puppy eating dog food
Image Credit: Andrii Spy_k, Shutterstock

Growth and Development

At this stage, your puppy has likely developed all the house training skills they need. They should be capable of holding their bladder and bowels for longer periods, and their daily bathroom breaks will slightly decrease. If your puppy isn’t house-trained yet, don’t worry. Speak to your veterinarian to make sure there aren’t any health concerns getting in the way and enlist the help of a professional trainer if need be.

Some dogs may be reaching sexual maturity around this time as well. If you’re looking to have your puppy spayed or neutered, now is a good time to talk to your vet about the procedure’s benefits. If your dog remains intact, they may display unwanted behaviors, such as aggression and roaming.

Your puppy’s adult teeth should begin to grow around this time if they haven’t already started. Some dogs lose their baby teeth earlier or later than others, so don’t be alarmed if this happens outside the 5-month mark. If you’re concerned about your dog’s growth and development, don’t hesitate to reach out to your vet.

Behavioral Changes

Like humans, dogs can go through an adolescent rebellious phase. At this age, your dog is beginning to explore their independence. They will test the rules and may seem to “forget” their training. They’re just seeing what your boundaries are.

Be patient and consistent with training during this time. Reinforce desired behaviors rather than punishing undesired behaviors. Your dog will learn the rules and understand that they do not get rewarded for bad behavior. Eventually, they will fall in line. But in the meantime, enrolling them in a training class is a good idea.

weimaraner puppy in obedience training
Image Credit: REN Photography, Shutterstock

Grooming

If you haven’t already, now is an excellent time to establish a regular grooming routine. Grooming is an important part of maintaining your dog’s health and comfort, yet grooming care can feel scary to a puppy if they’re not used to being touched. Training your dog to be accustomed to you touching their body (including sensitive areas like the paws, ears, and mouth) is a great way to ensure that your dog not only accepts grooming but enjoys it.

Using an odor-neutralizing shampoo will keep the stinky dog smell away. Since puppies can get into things frequently due to their curious nature, having a great standby shampoo like this one is a must. Not every dog requires the same level of maintenance, so talk to your vet or a professional groomer about your dog’s coat care needs.

You must also care for your dog’s teeth, ears, and nails. You can purchase dental chews to maintain your dog’s oral health, but you should regularly brush their teeth with canine toothpaste. Check their ears regularly, clean them as needed, and trim your dog’s nails when they get long.

Health

Keep in touch with your vet to ensure that your dog receives all of their scheduled vaccinations. You should also consider pet insurance before any accidents or illnesses can occur. Most pet insurance plans do not cover pre-existing conditions, so purchasing a policy before you need one is essential.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your dog — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

Training

House training is not the end of your dog’s training needs. They also need to learn obedience training to grow into a well-mannered adult. Keeping a consistent training schedule is the best way to teach your dog.

Practicing with your puppy for 10 minutes each day is a great way not only to train them effectively but also to bond with them. Start working on basic commands such as sit, stay, and heel.

This is a great time to leash-train your dog. Teaching your puppy how to behave on walks will ensure that they do not drag you all over the place as an adult. Enrolling your dog in obedience classes may be helpful in training them further.

Exercise

Your puppy will surely be packed full of energy, and exercise is a great way to burn it off. While exercise keeps your puppy fit and happy, too much of the wrong kind can harm their health. Finding an even middle ground is essential for your dog’s well-being.

High-impact activities, such as running or agility, can damage your dog’s growing joints and cause issues down the road. Instead, stick to brisk, short walks or games of fetch in the soft grass.

Dogster divider_v2_NEW_MAY_24_

When Does a Puppy Finish Growing?

white-australian-shepherd-puppy-lying-in-the-grass
Image Credit: Elena Birkina, Shutterstock

Looking at how big your puppy is at 5 months, it can be hard to imagine them getting bigger. For most dogs, 5 months is only the start. If you want to know how much longer you have to wait for your puppy to finish growing, take a look at the chart below for approximations based on breed size.

Breed Size Age Fully Grown
Small 6 – 12 months
Medium 12 – 15 months
Large 15 – 18 months

Of course, these numbers are generalizations and vary between individuals. For a more personalized estimate, talk to your vet so they can evaluate your puppy’s growth progress.

Dogster divider_v2_NEW_MAY_24_

Final Thoughts

Each life stage comes with its own milestones and challenges. It can be easy to feel overwhelmed once your puppy hits 5 months of age, but there’s no need to worry as long as your vet is content with your puppy’s growth and development. Instead of stressing, take the time to appreciate the season of life your puppy is in. It’s only going to happen once, after all.


Featured Image Credit: eltho08, 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

DIY Repellents for the Dog Who Thinks Everywhere Is His Toilet

Dog urine and everything nice have a complicated relationship. One thrives, the other suffers, and if you’re reading this, you already know which...

Dogster’s Weekly Photo Contest Winners: I Dig, Therefore I Am (March 5, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Ways to Stop Dog Boredom Before It Destroys Your House

Your dog is staring at you. They’ve paced between the door and the couch. They’ve sighed dramatically from their bed. The message is...

Kennel Club Quietly Adds 14 Breeds to High Risk List

Earlier this month, the Royal Kennel Club in the UK sparked controversy when it quietly announced that, in addition to the Bulldog, French...

More related

Eurasier Dog Breed: Info, Pictures, Origin & More

The Eurasier is a charming, fluffy dog that was bred to be the ultimate family dog. They’re known for their intelligence, loyalty, and...

Can Dogs Eat Rice Pudding? Vet-Approved Facts & FAQ

Anyone who owns a dog knows how it feels to be enjoying a yummy snack only to look over and see big, begging...

Blue Weimaraner: Facts, Origin & History (With Pictures)

The Blue Weimaraner is an amazing breed with a blue-gray coat and captivating eyes that can be different colors. They are intelligent, loyal,...

Acepromazine for Dogs: Usage, Dosage, Safety & FAQ (Vet Answer)

Tranquilizers have an important role in our veterinary patients. Tranquilizers can make examinations safer and easier, make patients less reactive to stressful events,...

Keep reading

9 Best Salmon Dog Foods in 2026 – Reviews & Top Picks

Many dog owners are choosing to feed their dogs food that contains salmon as the main ingredient because of the benefits this fish has to offer their dogs in terms of nutrition. Salmon is a common ingredient in high-quality dog...

dog eating wet food

Can Dogs Eat Seedless Grapes? Vet-Approved Health & Safety Facts

When you want to treat yourself to a sweet treat, you don’t usually have to think about whether food from the grocery store will make you sick. However, it’s a completely different matter when shopping for healthy and tasty treats...

Can Dogs Eat Seedless Grapes

What Is Fish Meal in Dog Food? Vet-Approved Safety Facts & FAQ

If you’re a dog owner who likes to read pet food labels, you’ll probably find quite a few unfamiliar ingredients listed. One such product is fish meal, commonly found in allergy-friendly diets. But what is fish meal in dog food,...

Wet and dry pet food made of natural ingredients

What to Feed a Pregnant Dog: First, Second & Third Trimesters (Vet-Approved Guide)

Good news! Your dog is expecting puppies! This is an exciting time in any pet parent’s life. But it can also be overwhelming if this is your dog’s first litter. You want to make sure you are giving your dog...

Sausage dog pregnant laydown at the bed Dauchand

Puppy vs Adult Dog Food: Vet-Verified Differences & When to Switch Diets

Whether we realize it or not, as dog owners, we have a significant influence over the health and wellbeing of our dog, with the food we choose playing one of the most important roles. Alongside exercise, training, and vet care,...

Dogster_Puppy vs Adult Dog Food

Can Dogs Have Scallops? Vet-Verified Nutrition Facts & FAQ

Learning that 95% of people consider their pets family members is not all that surprising these days. We open our homes to our dogs, share our vacations with them, and even let them sleep in our beds. We even slip...

Dogster-Can-Dogs-Have-Scallops

10 Best Dog Foods for Shih Tzus in 2026 – Reviews & Top Picks

Shih Tzus don’t have their own specific dietary requirements, as such, but they are a very small dog breed so they need to get all of their nutritional requirements in a comparatively small amount of food and without too many...

shih tzu dog eating outdoors

Can Dogs Eat Tomatoes? Health & Nutrition Facts

Whether eaten raw or cooked in a delicious sauce, tomatoes are a staple of many human diets. If you’re tempted to slip your dog a slice, you’ll first want to determine whether dogs can safely eat tomatoes. Ripe tomatoes are...

Can Dogs Eat Tomatoes

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter