
When the adolescence period is over, your pup is officially a fully grown adult dog. When it comes to his fur, his entire soft coat should shed completely and be replaced with brand new adult coat. Your pooch will become sexually mature and capable of reproducing during his period of adolescence. Reaching adulthoodĭepending on the breed, a puppy reaches his adolescence between 6 months and 18 months of age, and during this period of approximately 6 months, your ball of fur is almost at his full size. This is important to know since pups need special nutrition until they are fully mature, in order to grow properly and become healthy adults. In fact, some larger breeds may not be fully grown until around 2 years of age. Typically, smaller breeds reach their size more quickly than larger breeds.

Majority of people consider a one-year-old puppy to be an adult, however, not all dog breeds mature at the same rate and not all pooches are full grown on their first birthday.
