The Ultimate Guide to Raising a Puppy: Teething, Development & Training (UK)

Bringing home a new puppy is one of life's most exciting moments. Alongside the cuddles and wagging tails comes a whirlwind of questions about teething, chewing, training, feeding, socialisation and development. Understanding what to expect at each stage can help you raise a happy, confident dog while making the puppy months far less overwhelming.

From tiny needle-sharp puppy teeth to adolescent behaviour, every stage of your puppy's development brings new milestones and new challenges. Knowing what's normal, when to introduce different types of chews and treats, and how to support healthy development can make a huge difference to your puppy's wellbeing.

This complete UK guide takes you through every stage of puppy development, from eight weeks old to adulthood. You'll learn when puppies start teething, why they chew, how to choose safe natural treats and chews, what training to focus on at each age, and how to build positive habits that last a lifetime.

Whether you've just welcomed your first puppy home or simply want trusted, practical advice, this guide will help you navigate every important milestone with confidence.

🐶 Puppy Development Timeline: From 8 Weeks to Adulthood

Your puppy changes more during the first year of life than at any other time. From tiny baby teeth and endless naps to adolescent independence and adult behaviour, every stage brings exciting milestones as well as new challenges.

Understanding what to expect helps you choose the right training, treats, enrichment and chews while giving your puppy the best possible start in life. Although every breed develops at a slightly different pace, the timeline below provides a useful guide for most puppies.

8–12 Weeks: Settling Into Their New Home

This is usually when puppies leave their breeder or rescue and join their new family. Everything is unfamiliar, so patience and consistency are incredibly important.

• Learning their name
• Building trust with their family
• Sleeping for long periods
• Beginning toilet training
• Starting gentle socialisation
• Enjoying short play sessions

At this age, soft rewards and positive experiences are far more important than long training sessions.

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3–6 Months: The Teething Stage

This is when many owners first notice increased chewing. Baby teeth loosen as adult teeth begin erupting, making your puppy's gums sore and uncomfortable.

• More chewing than ever before
• Rapid physical growth
• Learning new commands quickly
• Exploring the world with their mouth
• Higher energy levels

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6–12 Months: The Teenage Puppy

Many owners describe this stage as the canine equivalent of adolescence. Puppies become more independent and may temporarily appear to forget commands they already knew.

• Testing boundaries
• Greater confidence
• Improved stamina
• Continued social development
• Refining training skills

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12–18 Months: Becoming an Adult Dog

Although many dogs look fully grown by their first birthday, emotional maturity often continues developing for many months afterwards, particularly in larger breeds.

Consistent training, mental enrichment and appropriate natural chews continue to play an important role throughout this stage.

🦷 Puppy Teething Explained

Puppy teething is one of the biggest milestones during your dog's first year. While it can sometimes feel frustrating when your puppy chews slippers, furniture or your favourite socks, chewing is a completely natural part of healthy development.

Just like human babies, puppies experience discomfort as their adult teeth push through their gums. Chewing helps relieve this pressure while also strengthening the jaw muscles and exploring the world around them.

Understanding what's normal during teething can help you manage the behaviour positively while protecting both your puppy and your home.

Common Signs of Puppy Teething

Every puppy experiences teething slightly differently, but some of the most common signs include:

• Chewing furniture, toys or clothing more often than usual
• Red or swollen gums
• Loose baby teeth
• Mild drooling
• Occasional small spots of blood on chew toys
• Reduced interest in hard food for a day or two
• Slightly bad breath
• Increased mouthing or nipping

These symptoms are usually temporary and improve once the adult teeth have fully erupted.

Why Puppies Chew More During Teething

Chewing isn't simply your puppy being naughty. During teething it serves several important purposes:

• Relieves sore gums by applying gentle pressure.
• Helps loosen baby teeth ready for adult teeth.
• Strengthens developing jaw muscles.
• Explores textures and objects as part of normal learning.
• Provides mental stimulation during a period of rapid development.

Providing safe, natural chews gives your puppy an appropriate outlet for these instincts while helping to protect your furniture, shoes and household items.

🦷 Puppy Teeth Timeline

One of the most common questions new puppy owners ask is, "When will my puppy lose their baby teeth?" While every puppy develops slightly differently, most follow a very predictable teething timeline.

Puppies are born without visible teeth. Their baby (or deciduous) teeth begin appearing within the first few weeks of life before gradually being replaced by a full set of permanent adult teeth during their first six to seven months.

Knowing what happens at each stage helps you recognise what's normal and understand why your puppy suddenly wants to chew everything in sight.

Will My Puppy Swallow Their Baby Teeth?

Yes — and it's completely normal. Many puppies accidentally swallow loose baby teeth while eating or chewing, and this rarely causes any problems.

You may occasionally find a tiny puppy tooth on the floor or notice a small spot of blood on a chew toy, but many owners never see a single tooth disappear.

What If A Baby Tooth Doesn't Fall Out?

Sometimes a puppy tooth remains in place after the adult tooth has erupted. This is known as a retained puppy tooth and is more common in smaller breeds.

If left untreated, retained teeth can cause overcrowding, plaque build-up and bite problems. Your vet can advise whether removal is necessary.

🐶 Why Puppies Chew

It can feel as though your puppy wants to chew absolutely everything — shoes, table legs, furniture, blankets and even your hands. While this behaviour can be frustrating, chewing is a completely natural part of puppy development.

Rather than trying to stop your puppy chewing altogether, the goal is to redirect that instinct towards safe, appropriate items.

Understanding why puppies chew makes it much easier to manage the behaviour positively.

Chewing Is Part of Learning

Young puppies experience the world differently from adult dogs. Just as babies explore objects by putting them in their mouths, puppies use chewing to investigate new textures, smells and tastes.

That means chewing isn't simply a response to teething — it's an important part of how puppies learn about their environment.

When Should You Be Concerned?

Most chewing is perfectly normal, especially during the first six months. However, sudden destructive chewing in an adult dog or chewing accompanied by signs of illness may indicate pain, anxiety or another underlying problem.

If your puppy seems unable to settle, cries while chewing, refuses food or has obvious mouth injuries, it's always worth speaking to your vet.

🦴 Choosing Safe Chews for Puppies

Not every chew is suitable for young puppies. Their developing teeth and jaws are far more delicate than those of adult dogs, so choosing age-appropriate natural chews is essential.

A good puppy chew should satisfy their natural chewing instinct without being so hard that it risks damaging newly emerging adult teeth.

Natural Chew	Young Puppies	Teething Puppies	Long Lasting
Rabbit Ears	✅	✅	⭐
Beef Collagen	Older Puppies	✅	⭐⭐⭐
Duck or Chicken Training Treats	✅	✅	—
Yak Chews	Older Puppies	✅	⭐⭐⭐⭐
Olive Wood	Older Puppies	With Care	⭐⭐⭐⭐

Supervision Always Matters

No chew is completely risk-free. Even natural chews should always be introduced gradually and enjoyed under supervision, particularly while your puppy is still learning how to chew safely.

As your puppy grows, their chewing needs will change too. Introducing different textures and suitable natural chews throughout each stage of development helps support healthy teeth, provides valuable enrichment and encourages positive chewing habits that can last a lifetime.

🎓 Puppy Training by Age

Training doesn't begin when your puppy learns to sit – it begins the moment they arrive home. Every interaction teaches your puppy something, whether that's learning their name, building confidence or discovering what behaviours earn rewards.

The good news is that you don't need to teach everything at once. Focusing on a few age-appropriate skills at each stage helps prevent your puppy from becoming overwhelmed while building a strong foundation for life.

Remember that every puppy develops at their own pace. Some will master new skills quickly, while others need more time and repetition. Keep training sessions short, positive and rewarding, and always finish on a success.

8–12 Weeks: Building Confidence

Your first priority isn't teaching impressive tricks – it's helping your puppy feel safe and secure in their new home. Focus on building trust through gentle handling, positive experiences and rewarding calm behaviour.

• Responding to their name.
• Beginning toilet training.
• Getting used to collars and leads.
• Being handled for grooming and vet visits.
• Learning that people are safe and rewarding.

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3–4 Months: Learning the Basics

Once your puppy has settled in, they're ready to learn simple cues. Keep sessions fun and reward every success with praise and small, tasty treats.

• Sit.
• Down.
• Come when called.
• Walking politely on a lead.
• Gentle manners around people.

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4–6 Months: Developing Self-Control

As your puppy becomes more confident, you'll start introducing behaviours that require patience and focus.

• Stay.
• Leave it.
• Loose lead walking.
• Waiting politely.
• Settling on a mat.

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6–12 Months: Teenage Challenges

Adolescent dogs often test boundaries and appear to forget things they've already learned. This is completely normal. Stay consistent, continue rewarding good choices and avoid becoming frustrated if progress seems to slow temporarily.

Consistency, patience and positive reinforcement remain the keys to success throughout this stage.

🥣 Feeding Your Growing Puppy

Good nutrition plays a vital role in your puppy's growth, development and overall health. During their first year, puppies need a carefully balanced diet to support healthy bones, muscles, brain development and a strong immune system.

As your puppy grows, their nutritional needs will change. Younger puppies require smaller, more frequent meals, while older puppies gradually transition to fewer meals each day. Feeding the right amount, choosing high-quality food and using healthy treats in moderation all help set your puppy up for a long, healthy life.

If you're ever unsure about what or how much to feed, your vet can provide guidance based on your puppy's breed, age, size and activity level.

Introducing New Foods Slowly

Puppies have sensitive digestive systems, so it's best to introduce any new food, treats or natural chews gradually. Sudden changes can upset their stomach and may cause diarrhoea or vomiting.

If you're switching to a new food, gradually mix increasing amounts of the new food with the old over 7–10 days.

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Healthy Treats Have Their Place

Treats are an important training tool, but they should complement a balanced diet rather than replace it. Choose natural, bite-sized treats made with simple ingredients, and keep training rewards small so your puppy stays motivated without filling up too quickly.

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Fresh Water Is Essential

Always provide your puppy with access to fresh, clean drinking water. Active puppies can become dehydrated surprisingly quickly, particularly during warm weather or after exercise.

🌍 Socialising Your Puppy

Socialisation is one of the most important parts of raising a confident, well-adjusted dog. It isn't simply about meeting lots of people or playing with other dogs – it's about helping your puppy feel comfortable and safe in the world around them.

The experiences your puppy has during their first few months can have a lasting impact on how they respond to new situations throughout their life. Positive, gradual introductions help build confidence, while overwhelming experiences can sometimes have the opposite effect.

The goal isn't to expose your puppy to everything at once. Instead, focus on creating calm, enjoyable experiences that allow your puppy to explore at their own pace.

Building Confidence Through Positive Experiences

Reward calm curiosity whenever your puppy encounters something new. Whether it's hearing a vacuum cleaner, meeting a neighbour or walking past a busy road, praise and small treats help create positive associations.

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Don't Force Interactions

If your puppy appears nervous, avoid pushing them towards unfamiliar people or dogs. Give them space to observe, offer reassurance and allow them to investigate when they're ready.

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Continue Socialisation Beyond Puppyhood

Socialisation doesn't stop once your puppy reaches six months of age. Continuing to introduce new places, people and experiences throughout adolescence helps maintain confidence and prevents fear of unfamiliar situations later in life.

🐾 Common Puppy Problems (and How to Handle Them)

Every puppy owner experiences a few bumps along the way. Whether it's biting, chewing, accidents in the house or sleepless nights, these challenges are all part of raising a young dog. The good news is that most puppy behaviours are completely normal and improve with patience, consistency and positive training.

Rather than expecting perfection, focus on helping your puppy learn what you want them to do. Consistent routines, appropriate rewards and plenty of enrichment will solve many common problems over time.

When Should You Ask for Help?

Some behaviours improve naturally as your puppy matures, while others benefit from early support. If your puppy shows signs of fear, aggression, severe separation anxiety or persistent health problems, speak to your vet or a qualified, reward-based dog trainer as soon as possible.

Getting help early is often much easier than trying to change an established behaviour later in life.

❓ Frequently Asked Questions

When do puppies stop teething?

Most puppies finish teething between six and seven months of age, although larger breeds may mature slightly later.

What are the best natural chews for puppies?

Age-appropriate natural chews such as rabbit ears, collagen chews and suitable puppy chews can help satisfy chewing instincts while supporting healthy development. Always supervise your puppy while chewing.

How long should puppy training sessions be?

Short sessions of around 5–10 minutes work best. Several short sessions each day are usually much more effective than one long session.

How often should I feed my puppy?

Young puppies generally need three or four meals each day before gradually moving to two meals as they grow. Your vet or food manufacturer can advise on the correct feeding amount for your puppy.

Why does my puppy bite so much?

Puppies bite and mouth because they're teething, exploring the world and learning how to interact. Redirect biting onto suitable toys or natural chews and reward calm behaviour.

When should I start training my puppy?

Training begins from the day your puppy comes home. Focus on building confidence, responding to their name and rewarding good behaviour before progressing to basic commands.

When can my puppy go for walks?

Your puppy can begin exploring outdoors once they've received the vaccinations recommended by your vet. Until then, socialisation can still take place safely by introducing your puppy to new sights, sounds and experiences.

Is chewing normal for puppies?

Yes. Chewing is a completely normal behaviour that helps relieve teething discomfort, strengthens jaw muscles and provides valuable mental enrichment.

❤️ Final Thoughts

Raising a puppy is one of life's most rewarding adventures. While the early months can sometimes feel challenging, they also provide the perfect opportunity to build the habits, confidence and trust that will shape your dog's future.

Every puppy develops at their own pace, so don't worry if progress isn't perfectly linear. Celebrate the small wins, stay patient during the difficult days and remember that consistency always beats perfection.

By understanding each stage of your puppy's development, choosing appropriate natural chews, using positive reward-based training and creating enjoyable experiences, you'll be giving your puppy the best possible start in life.

Whether you're helping a teething puppy find relief, teaching their first recall or choosing healthy natural treats, every positive experience strengthens the bond between you and your dog.

At PetBuddy, we're passionate about helping dogs live happier, healthier lives through expert advice, natural products and practical guidance you can trust. We hope this guide has given you the confidence to enjoy every stage of your puppy's journey.