When Do Dogs Stop Growing? Factors Affecting Growth Rate

When you are going to adopt a puppy, the major question that strikes is, When Do Dogs Stop Growing? Well, this is a basic question usually asked by multiple dog owners. It is important because you can understand the proper needs of the puppy.

Such that, when you check the growth rate you can know about the best collars which are appropriate for your little friend. Furthermore, you can understand the exact quantity of food required by a puppy.

Thus, this question is of great importance and the answer is that it varies from dog to dog, such that the growth patterns are affected by multiple factors which highly influence the growth of a puppy.

Well, there three major factors which affect the growth of a puppy. These factors determine the exact time period and the growth patterns, and you easily know the time when your dog will stop growing. These factors are as follows.

  • Breed
  • Genetic factors
  • Sex


Well, it is quite hard to predict that, When Do Dogs Stop Growing? but you can use the breed as an indication source, such that by analyzing the history of the breed you can understand the pattern of growth.

For example, the small breed dogs grow fastly compared to the large-sized, which also affects their sexual maturity. So, different breeds have different growth patterns.

 Small Breeds 

If you have a dog who belongs to the below-mentioned breeds, then he is considered a small breed.

  • Pug
  • Chihuahua
  • Dachshund
  • French Bulldog
  • Maltese
  • Shih Tzu
  • Pomeranian

 Growth of Small Breeds 

If you have a god from the above-mentioned breeds, then you can expect that they would grow fully mature within one year. But it is also different for different types of dogs. A question that arises is When do Chihuahuas stop growing,  well the answer is it takes 6 months to grow properly.

Thus, you can say that every dog has a different pattern, such that if you have labs, then the question that arises is, when do Labs stop growing? The answer is that it takes about 2 years to fully develop.

 Medium Breed 

If you have a dog who belongs to the below-mentioned breeds, then he is considered a medium breed.

  • American Foxhound
  • Basset Hound
  • Australian Shepherd
  • Bull Terrier
  • Border Collie
  • Dalmatian
  • Bulldog

 Growth of Medium Breeds 

The growth pattern of medium-sized breeds is different from that of small ones, such that a medium one takes 18 months to grow properly. Furthermore, this type of breed grows faster than the other ones.

Different questions come to mind while having a puppy, one major one is, When do dogs stop teething? The answer to this question is varies from breed to breed, but usually, it takes 6 months to have all teeth.

 Large Breeds 

If you have a dog who belongs to the below-mentioned breeds, then he is considered a large breed

  • Akita
  • Bernese Mountain Dog
  • Boxer
  • Bullmastiff
  • German Shepherd
  • Greyhound
  • Golden Retriever

 Growth of Medium Breeds 

Some breeds of dogs grow more quickly as compared to others, such that if you have a German Shepherd, then the question arises is, When do German Shepherds stop growing? the answer to this question is that it takes around 18 months to fully grow.

The large breed dogs take around 18 months to grow properly, but some of the dogs grow more effectively as compared to the others.

 Giant Breed 

Some of the puppies grow into extremely large dogs called giant breeds. Following are major examples of giant breeds.

  • Bernard
  • Great Dane
  • Irish Wolfhound
  • Great Pyrenees
  • Mastiff
  • Giant Schnauzer

 Growth of Giant Breeds 

The giant breeds take more time to large as compared to other types, such that they take about 2 years to fully mature. So, when you go for a large breed then it takes a large time as compared to other breeds.

One question that usually comes to mind is, When is a dog fully grown? well it depends upon the breed of the dog, such that some dogs can fully grow in 6 months whereas some needs about 2 to 3 years to fully grow

growth rate

Genetic factors

Along with breed types, genetic factors also affect the growth of the dogs. Such that the genetic patterns and factors like the DNA recombination during production ha a great effect on the growth of dogs.

This could also mean that the dogs have a large number of genetic differences and thus these differences affect the growth of dogs to a great extent.


The sex of the dog also affects its growth, such that in some breeds the female dog takes more time to grow as compared to the male one. Whereas, in some breeds, the male breeds grow fully within a small time period compared to the females.

Growth Signs in the Puppies

There are some major similarities that all puppies experience, such that most of the dogs have to pass the same stages of development t before becoming fully grown dogs.


From birth to about 2 weeks age, puppies usually sleep the whole time and they only wake for nursing. Furthermore, the weight of dogs becomes double within few weeks.

 Transitional Phase 

This period lasts from 2 to 4 weeks, in this period puppy is called to be in a transitional phase and they start to open their eyes, plus the puppy starts growing bay teeth at this time.

 Juvenile Phase 

The juvenile phase lasts from 4 to 12 weeks, and during this time period, dogs experience sexual maturity and puberty. Plus, the dog begins to run and play which strengths his muscles.

During this phase, the puppy begins to grow more rapidly, and you will encounter proper changes every day. The puppies also get aggressive during this stage but it is a normal phase as it is experienced by every dog.

At this stage, you can have a chew-proof dog bed for your little friend to make him feel comfortable.


This phase lasts from 6 to 12 months, at this stage, the female dogs start heating and prepare themselves for sexual connections and sam goes for the male dogs. But the physical growth usually slows down during this period. Plus, the baby’s fur will be replaced with an adult coat.

 Full Maturity 

This phase lasts from 1 to 2 Years, and now a puppy has completed converted into a dog. But this growth period varies from dog to dog, such that some breeds take more time to grow properly as compared to other breeds.


Basic Growth Signs in Puppies

Final Verdict

When you are going to adopt a puppy then the basic question that comes to mind is, When Do Dogs Stop Growing? Well, the understanding of the whole growth pattern will help to understand the needs of dogs.

Review this article to know about all the factors which are involved in the growth patterns and affect the dogs to a great extent.