The Teenage Dog (6-18 Months): Surviving Adolescence
Adolescence is when the sweet puppy suddenly ignores you, tests limits and bursts with energy. It is normal and it passes. This guide explains what is happening, how to keep training on track, meet exercise and mental needs, and decide about neutering with your vet.
Quick answer
Between roughly six and eighteen months your dog is a teenager: full of energy, easily distracted, and testing boundaries. This is normal brain development, not disobedience or spite. Stay consistent, keep rewarding good choices, meet their physical and mental needs, and ride it out — most dogs settle beautifully on the other side.
Adolescence is when the sweet puppy suddenly ignores you, tests limits and bursts with energy.
What is happening to your dog
Adolescent dogs go through hormonal and brain changes much like human teenagers. A cue your puppy knew perfectly may suddenly seem forgotten, especially around distractions. Fear can briefly resurface, so a confident young dog might spook at something familiar. None of this is your dog being difficult on purpose — it is a normal, temporary phase.
Keep training consistent
This is the worst time to relax the rules, and the best time to keep them clear and kind. Go back to rewarding basics generously, practise in gradually harder settings, and keep a long line on recall so you can succeed rather than chase. Reward-based methods win here; harsh corrections during adolescence can create lasting fear or aggression.
Keep rewarding basics — adolescents need reminders, not just puppies.
Meet their energy needs
A bored teenage dog invents its own hobbies — usually chewing, digging or barking. Provide daily physical exercise suited to breed and age, but do not rely on exercise alone; a super-fit dog just needs more. In a small flat, structure matters: split walks, sniffing time, and calm settling practice all help drain energy without winding the dog up.
Channel teenage energy into brain games as well as exercise.
Feed the brain, not just the legs
Sniffing, chewing and problem-solving are calming for dogs. Use food puzzles, scatter feeding, snuffle mats and short training games to satisfy the mind. Teaching a reliable settle — lying calmly on a mat while life happens around them — is one of the most valuable skills for city living, especially in a compact home.
Neutering and health
Neutering (絕育) timing is now an individual decision. For some dogs, especially larger breeds, vets may advise waiting until growth is more complete; for others, earlier is fine. Discuss the pros and cons for your specific dog with your vet rather than following a fixed rule. Keep up vaccinations, parasite prevention and a good diet through this fast-growing stage.
Quick FAQs
Why has my trained puppy stopped listening? Adolescence temporarily disrupts learned behaviour. Keep practising with rewards in easier settings and it returns — usually stronger than before.
Will neutering calm my dog down? It may reduce some hormone-driven behaviours, but it is not a fix for training gaps or excess energy. Discuss timing and expectations with your vet.
My dog is destructive when alone — what now? Rule out under-stimulation and separation distress. Increase enrichment and gradual alone-time practice, and ask your vet or a trainer if it continues.
When will my dog grow out of this? Most dogs settle noticeably by around 18 months to two years, with larger breeds maturing later. Consistency now shortens the rough patch.