The Adolescent Fear Period in Dogs: What It Is and How to Help
Updated: 3 days ago
Your confident young dog has suddenly started backing away from strangers, barking at the wheelie bin or jumping at sounds that never bothered them before. It's like everything they've ever learnt has fallen out of their head, and then just as suddenly it pops back in again. Matthew's dog Lexi has been the most teenage dog we've ever had, and watching her circle her own ball on the lawn as if it might bite her was the adolescent brain in action. What you're likely seeing is the adolescent fear period, a normal stage of growing up, and how you handle it now makes a real difference to how confident your dog grows up to be.
THE SHORT ANSWER
Many dogs go through a fear period in adolescence, usually somewhere between six and fourteen months. They may startle more easily, become wary of people, dogs or objects they used to ignore, or seem clingier than usual. It's temporary. Stay calm, let your dog watch from a distance they're comfortable with, pair new things with good things, and don't force or tell them off. If the fear is intense or isn't easing after a few weeks, get help early.
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What is the adolescent fear period in dogs?
Most dogs have two fear periods while they grow up. The first is usually around eight to eleven weeks, when your puppy has just come home. The second often appears in adolescence, roughly between six and fourteen months, though the timing varies from dog to dog.
During adolescence your dog's brain is still developing, and hormones are changing. The emotional part of the brain is racing ahead of the part that helps them think things through. Your dog feels more, reacts faster and can be thrown by things that seemed fine last week. Underneath it all, they're learning to cope with big feelings while their body and brain change.
Signs of a fear period in an adolescent dog
Startling easily at noises or sudden movement
Hesitating or refusing to go near objects they used to ignore
Barking or growling at people, dogs or things that look different
Avoiding new places or situations
Being clingier than usual
Seeming restless, jumpy or easily distracted
These changes can come and go. One day your dog seems fine, the next they're nervous again.
Why the adolescent fear period matters
If a scared dog feels pushed or unsupported, they can start linking that fear to the person, object or place involved. Repeat that a few times and the worry can stick. A calm, patient response during this stage helps stop a passing wobble from becoming a long-term fear.
How to help your dog through a fear period
1. Stay calm and predictable
Your dog takes their cue from you. If you stay relaxed, they're more likely to bounce back from a fright. Avoid yanking them away or making a big fuss.
2. Let them watch from a distance
When your dog hesitates, don't drag them closer. Let them look from a distance where they can still take a treat. Curiosity often takes over once they feel safe.
3. Pair new things with good things
Feed tasty treats when something new or worrying appears, so your dog learns that unfamiliar things predict good stuff.
4. Keep a steady routine
Regular walks, meals and rest help your dog feel secure while the world feels uncertain.
5. Don't tell them off
Fear isn't disobedience. Telling a scared dog off makes them more worried, not less.
6. Keep outings short and positive
End on a good note, while your dog is still coping well. Lots of small, easy successes do far more than one long, stressful outing.
7. Protect their rest
A tired or over-stimulated adolescent is much more likely to react. Make sure your dog gets plenty of sleep, with calm activities like sniffing games, licking and chewing in between.
Socialisation doesn't stop at puppyhood
Adolescent dogs still need to see the world, but quality matters far more than quantity. Calm, friendly dogs and polite people are worth far more than busy parks and big crowds. Let your dog explore new places and sounds at their own pace, and keep things easy enough that they can stay relaxed.
When to get help
If your dog's fear is intense, is getting worse, or isn't easing after a few weeks of calm support, don't wait it out. Early help can stop fear from settling in. It's also worth a vet check, as pain, eyesight changes or other health problems can make a dog more sensitive and jumpy.
RENEE'S TIP
Carry treats on every walk during a fear period. The moment your dog spots something that worries them, start feeding. You're teaching them that scary things make good things happen.
QUICK CHECK
ā A second fear period often appears between six and fourteen months
ā It's normal and usually temporary
ā Let your dog watch from a comfortable distance
ā Pair new things with treats
ā Don't force or tell them off
ā Intense or lasting fear? Get help early
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FAQs
When is the adolescent fear period in dogs?
It often appears somewhere between six and fourteen months, though the timing varies. It can last a few weeks.
How long does a fear period last in dogs?
Usually a few weeks. If your dog's fear is getting worse or hasn't eased after a few weeks of calm support, get help.
Do all dogs go through a fear period?
Not all dogs show an obvious one. Some barely change, while others become much more wary for a while.
How do I help my dog through a fear period?
Stay calm, let them watch from a distance, pair new things with treats, keep a steady routine and avoid forcing or telling them off.
Can a 1 year old dog go through a fear period?
Yes. A fear period can show up at around a year old, as many dogs are still in adolescence at that age.
ABOUT THE AUTHOR
Renee Patience Ā· National Dog Trainer of the Year 2025
Founder and head trainer of Paws Academy, with more than 30 years training dogs and a Level 6 Diploma in Applied Canine Behaviour. Renee has competed in agility, obedience and heelwork to music across the UK, including at Crufts and Olympia, has appeared on CBBC, and is the author of the Modern Training Guides and the Modern Breed Handbook series. Pictured with her boxer, Kookie.
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