The Complete Guide to Your Puppy's First Year

Most puppies come home at 8 weeks. Before that, responsible breeders and shelters handle critical early development.

What's Happening

• Eyes and ears open (2–3 weeks)
• First wobbly steps and play with littermates
• Weaning from mother's milk to solid food (3–4 weeks)
• Critical socialisation window begins (3 weeks)
• First deworming treatment (2 weeks)

What You Should Know

If you're choosing a puppy, ask the breeder about early handling, exposure to household sounds, and deworming schedule. Puppies removed from their litter before 8 weeks miss crucial social learning that affects behaviour for life.

This is the most important developmental period. The socialisation window closes around 14–16 weeks — experiences during this time shape your dog's temperament permanently.

Key Priorities

• First vet visit within 48–72 hours — vaccination course begins (see the full vaccination schedule)
• Set up your home — use our puppy checklist
• Socialisation plan — expose to 100+ new experiences (people, sounds, surfaces, animals) in positive, controlled contexts
• House training — take outside every 1–2 hours, after meals, naps, and play
• Crate training — essential for safety, travel, and settling
• Bite inhibition — redirect mouthing to toys; yelp and withdraw if bitten

"Socialisation isn't about meeting as many dogs as possible. It's about having positive, controlled experiences with a wide variety of stimuli. Quality over quantity." — Dr. Jo Myers, DVM

What's Happening

• Baby teeth fall out, adult teeth come in (intense chewing!)
• Final vaccination boosters given
• Can start walking outside after full vaccination
• Rapid growth — large breeds especially
• Adolescent boundary-testing begins

Training Focus

• Basic obedience — sit, stay, come, leave it, lead walking
• Recall — start in enclosed spaces; this command saves lives
• Impulse control — wait for food, settle on cue
• Alone training — gradually build tolerance to prevent separation anxiety

Nutrition

Continue age-appropriate puppy food. Resist the temptation to overfeed during the growth phase — puppy weight management is crucial for long-term joint health, especially in larger breeds.

Welcome to the "teenage" months. Your puppy knows the rules — they're just choosing to test them.

What to Expect

• Selective hearing (recall gets "worse")
• Increased energy and intensity
• Hormonal changes — marking, humping, or mood shifts
• Fear periods — previously confident dogs may become wary of new things

Spay/Neuter Decision

Timing varies by breed and size. Current evidence suggests:

• Small breeds: 6–9 months is generally appropriate
• Large/giant breeds: Waiting until 12–18 months may benefit joint development
• Discuss the specific recommendation for your dog's breed with your vet

Training

Patience and consistency are your best tools. Don't punish regression — reinforce good behaviour. Consider a group training class for socialisation and structured learning.

What's Happening

• Growth slows (small breeds may be fully grown; large breeds continue growing to 18–24 months)
• Adult teeth are fully in
• Energy levels begin to moderate slightly
• Behaviour becomes more predictable

Key Milestones

• Transition to adult food — for small/medium breeds around 12 months. Do this gradually over 7–10 days to avoid stomach upset
• Annual booster vaccinations due
• Dental check — establish adult teeth baseline (start a dental care routine)
• Weight assessment — this is when obesity prevention becomes critical. Metabolism drops as growth slows, but appetites don't

By the end of year one, your puppy should have completed:

• Full primary vaccination course + first annual booster
• Microchipping (registered to your details)
• Regular deworming and flea/tick prevention (see our prevention guide)
• Spay/neuter (if appropriate for breed and timing)
• At least 3–4 veterinary check-ups
• Dental baseline assessment
• Transition to adult food (size-dependent)

This first year builds the foundation for a lifetime of health. Use our year-by-year preventative care schedule to stay on track for year two and beyond.