Adolescent Dogs: What to Expect | Express Vets Cumming Blog

Adolescent Dogs: What To Expect During Their Teenage Phase

Puppies grow fast—and just like humans, they eventually enter a teenage phase. Between the ages of 6 months and 18 months, dogs experience adolescence. This stage can bring about noticeable shifts in behavior, energy, and attitude. It’s a crucial period in your dog’s development, and how you respond can make all the difference.

Here’s what to expect—and how to support your pup through it.

Mood Swings Are Normal

Just like human teens, adolescent dogs often act out in confusing ways. You might notice your pup becoming moody, defiant, or even a bit distant. One day they’re snuggling on the couch, the next they’re ignoring your calls. This behavior isn’t personal—it’s part of growing up. Their hormones are surging, and they’re figuring out where they fit in their “pack” (aka your household).

Tip: Stay consistent with affection and boundaries. Your dog still needs reassurance, even if they act aloof.

Testing Boundaries

You may notice your previously well-behaved puppy “forgetting” commands or breaking rules. Chewing on shoes again? Barking at the door? Refusing to sit on cue? These are signs your dog is testing limits. It doesn’t mean your training has failed—it means your dog is in the rebellious stage of development.

Tip: Reinforce basic training daily. Short, consistent training sessions help your dog remember the rules and build good habits that will stick into adulthood.

Mental & Physical Energy Surge

Teenage dogs are bundles of energy. Their bodies are growing rapidly, and their brains are buzzing with curiosity. Without proper outlets, all that energy can turn into destructive behaviors like digging, jumping, or chewing.

Tip: Combine physical exercise with mental stimulation. Long walks, puzzle toys, basic obedience games, or agility work are great ways to channel their energy positively.

Socialization Is Still Key

Even if your dog completed early puppy socialization, adolescence is a second critical window. This is when some dogs develop fears or aggressive tendencies if they’re not consistently exposed to people, places, and other animals.

Tip: Continue introducing your pup to new environments, friendly dogs, and diverse people. Keep the experiences positive and controlled. Socialization isn’t just a puppy thing—it’s a lifelong practice.

Health Considerations

Adolescence is also a good time to schedule a veterinary check-up. At Express Vets Cumming, we recommend assessing your dog’s growth, dental health, and vaccination schedule during this stage. It’s also when many dogs undergo spaying or neutering, which can reduce certain unwanted behaviors and support long-term health.

Tip: Schedule an adolescent wellness check at Express Vets Cumming to stay ahead of potential health concerns and support a smooth transition into adulthood.

Your dog’s teenage phase might test your patience, but it’s temporary. With consistent training, clear boundaries, plenty of enrichment, and ongoing support from your primary care vet, your adolescent pup will grow into a well-adjusted adult dog.

Need help navigating this stage? Our team at Express Vets Cumming is here to support your dog’s journey from puppy to adult. Contact us today to schedule a check-up or behavioral consultation.

Visit us at 5485 Bethelview Rd. Suite 440,Cumming, GA 30040 or call us at (470) 239-7672