https://www.chewy.com/education/dog/new-dog/what-to-expect-the-first-year-with-your-new-puppy
Puppy development is a dynamic and fascinating journey, with each stage bringing unique physical and behavioral changes.
In the first few weeks of life, puppies rely entirely on their mother or caregiver, feeding frequently and beginning to develop fur, muscles, and alertness.
By 3 - 4 weeks, puppies start opening their eyes, hearing sounds, and experimenting with walking, while gradually transitioning to solid food and bonding with humans.
The 1 - 3 month period marks the typical age when puppies come home, and socialization becomes key. During this stage, puppies continue vaccinations, start potty and basic obedience training, and are introduced to new people, animals, and environments, setting the foundation for a well adjusted adult dog.
Between 3 - 8 months, puppies undergo rapid physical growth, including teething and changes in body weight, making supervision and safe spaces important. Their personalities begin to emerge, and they start testing boundaries and making independent decisions. Pet parents should provide appropriate chew toys, continue obedience training, and maintain vaccination and preventive care schedules.
By 8 - 12 months, small breeds may reach adulthood, while larger breeds continue growing and require diets designed for their size and developmental needs. This is also a time to maintain mental stimulation and reinforce training skills.
From 12–24 months, most dogs are emotionally mature, though larger breeds may still be completing physical growth. Bones, joints, and muscles remain vulnerable, so high-impact exercise should be limited until full maturity. Behavioral issues that arise during this stage should be addressed promptly, with the guidance of a veterinary behaviorist if needed.
Understanding these stages helps pet parents support their dogs’ health, safety, and emotional development, ensuring a smooth transition from playful puppyhood to a confident, well adjusted adult dog.
Watching a puppy grow from a tiny, wobbly newborn into a confident, playful adult is a journey filled with joy, patience, and unforgettable moments. Every cuddle, every new discovery, and every lesson learned strengthens the bond between you and your furry companion. Chewy editorial team is here to guide and support you every step of the way, helping you cherish each stage of your puppy’s life.
