At What Age Do Puppies Stop Growing: Find It Out to Make Sure Your Dig Is Growing Right

The question of when does a puppy stop growing interests everyone who takes a puppy to their family. Everyone would like the puppy to remain small and cute for longer, but nature has its schedule at what age is a puppy full grown.

Care and needs for adult dogs and puppies are completely different. For this reason, each parent of a four-legged baby needs to discover when do puppies grow the most to ensure proper care. Here you will discover a lot about what age do puppies stop growing (and at what they still continue to do it and amaze you with their cuteness).

What Affect Dogs Growth 

All puppy owners need to discover how long do dogs grow and when they become strong. The main factors that influence dog growth are the following: 

  • Breed. It is a key point that affects the periods when do puppies stop growing.
  • Genetics. All puppy systems are formed in the womb and, if the mother has a genetic disease, it can be transmitted to the puppy at the genetic level too.
  • The dog’s gender. In almost all breeds, females grow faster than males.
  • Proper nutrition and physical activity. It is important for puppies to be active and get all the beneficial substances from food as this can affect at what age do puppies stop growing.
  • The absence of helminths. The presence of worms negatively affects all aspects of the puppy’s health and, of course, affects how fast do puppies grow. 

Dog Growth Stages: When Do Dogs Reach Full Size

There are generally accepted stages at what age do dogs stop growing. Let’s look at the main stages of how long do puppies grow that you need to know about as the parent of a caudate baby. Below you will find more about the stages when do dogs stop growing.

Embryonic stage

As the name implies, at this stage, the puppy is in the womb. By the way, during this period, not only the formation of organs and systems takes place, but also the nature of behavior when are dogs full-grown and the puppy’s connection with the smell of the mother.

make your dog obidient

First 1,5 month 

10 days after birth, babies begin to increase in size twice. During this period, you can identify stronger and weaker puppies. Two weeks later, the kids begin to open their eyes, hear, and even walk. At the age of one month, teeth begin to appear, and already at this time, it is possible to introduce complementary foods and wean from mother’s milk.

The end of this period in the baby’s life is a stage of socialization with both other dogs and people. By the age of 5 weeks, puppies are actively studying the environment and playing. It is recommended to excommunicate the baby from the mother after 8 weeks since until this time the baby will learn the basic habits and will become ready for independent life. Experts say that puppies are developing the first skills of interaction and socialization during the play with each other, and what is more, they are even learning something like morality.

First six months

What age are dogs full grown? The first 24 weeks are considered an active period when environmental awareness takes place. The growth of tubular bones practically stops and this is a good age for learning basic things. This is a great period to enjoy the childhood of your puppy while teaching him the basic rules. 

The first year

During this period, the puppy already has permanent teeth. If other dogs are present, dominant behavior over others may occur. At this time, the weight of the baby usually increases by only 25-30%. In dogs of large breeds, growth can take up to 8 months. However, a period of 6-8 months is decisive, which means that during this period, the owner must pay due attention to health. 

Two years

During this period, the dog will no longer grow actively. As for behavior, the puppy will no longer surprise the owner with minor troubles that you’re already used to – like eaten boots or spoiled flowers on the lawn. As for growth, this is the stage when does a dog stop growing.

The Peculiarities of Dog Growth

So, on average, active growth in puppies ends by 6 months. The subsequent period of development depends on the characteristics of the breed. Below you can find out the main features of growth depending on size. Remember that the indicators are average, and you can find out the exact data based on the breed of your pet.

For large breeds

These dogs grow longer than other breeds. So, at what age are dogs full grown? On average, they finish growing by 3 years. Usually, growth occurs from one to two years and then dogs begin to gain muscle mass.

For medium breeds

At what age does a puppy stop growing? Dogs of this size usually complete their growth by the year. And then for six months or a year, they gain muscle mass.

For small breeds

Small breeds finish their growth from 8 months. When do small dogs stop growing? For example, a toy terrier finishes its growth in the sixth month of life, which is much faster than other breeds. The dachshund ceases to grow in length at eight months but continues to grow in width up to a year.

How To Determine That The Dog Is Growing Right?

After reviewing the above information, the owners have a natural question. Namely, how to find out that the dog is growing correctly. The following guidelines will help you monitor the growth process in the right way.

  • Find out what are the breed standards. As you already understood, each dog breed has its characteristics and its puppy growth rates.
  • Contact your breeder. If you have bought a pedigree dog, you may always consult with your breeder regarding the peculiarities of the development of your pet. For example, he can tell you when a dog’s teeth will grow or when they will be replaced.
  • Measure and weigh your dog. In order to determine whether your baby is developing correctly, you need to look at the table of standards and take measurements of your puppy every two weeks.
  • Ask a vet. Consult your vet regarding your puppy’s health and at what age is a dog full grown. Puppies require special attention and this period of life will be accompanied by frequent trips to the veterinarian, which will be a good prevention of diseases.

What to Foresee Due to Dog’s Growth

They say that children grow by leaps and bounds. This statement is also true for puppies. For this reason, there is a need to provide for some things that many new owners may forget about. 

  • The size of a bed. It is recommended to purchase a crib that will correspond to the current size of a dog. Puppies grow very quickly, however, in order for the puppy to feel comfortable in its crib, it must meet its size. Most likely, you will need three cribs – for the first six months, for the first one and a half years and a large bed, which will last the longest. This is true for puppies of large breeds. If you have chosen a small breed dog, then most likely, one or two cribs will be enough for you. Yes, it is expensive, but puppy comfort is worth the money. 
  • The size of the collar. Puppies grow quickly, but a collar is one of the elements to ensure safety. Therefore, the collar should be strictly sized, but have a little free space on the neck. Never buy larger collars than necessary – the puppy’s head can slip out of such a collar, and the puppy can run towards a busy road without realizing the danger.
  • Age-appropriate toys. Make sure to choose age-appropriate toys, but also take into account that the puppy will grow very quickly. Therefore, some toys can be spoiled very quickly too. Never give your puppy toys that are potentially dangerous – for example, those that are designed for adult dogs can harm the jaw.
  • Age-appropriate vaccinations. The puppy must receive the necessary vaccines in order to be healthy. Ask your veterinarian for a schedule of vaccinations so you don’t miss a thing.
  • Age-appropriate nutrition. Proper nutrition is the key to the health of the baby. Puppies have special needs, so the food should be of high quality and rich in useful elements. The vet will help you choose the optimal diet based on the puppy growth spurts needs and the characteristics of the breed.

We have listed these items to make you understand firstly at what age does a dog stop growing, and secondly to help you with budget planning for the first year of puppy’s life.

Diseases That May Affect Dog Growth 

How old are dogs when they stop growing is clear, but what about the diseases that can stop it? Unfortunately, some diseases can harm the overall development of organs and significantly slow down this process. Here are the most widespread ones:

  • The disease of the kidneys and urogenital system.
  • Digestive system disease.
  • Disruptions in the endocrine system.
  • Diseases that arise due to a genetic predisposition.

Note, some diseases may occur when is a puppy fully grown.

Is There Is a Need to Give Puppy Growth Stimulators? 

Giving such products without consulting your doctor is not recommended. The best thing you can give a pet is a balanced and high-quality diet, sufficient physical activity, and your love, of course. 

Interesting Facts: Amazing Dog Sizes

What about interesting facts about what age do dogs stop growing? As you understand, there are unusual cases when dogs stop growing at all or even when is a dog fully grown but exceeds the norm. 

  • In 1981, the English mastiff took a place in the Guinness Book of Records as the largest dog, whose weight reached 155 kg.
  • In 2014, the new record among the smallest dogs was taken by the Chihuahua, whose weight was only 0.4 kg.


So, you have learned at what age does a dog stop growing. The main thing is to observe all the changes in your baby and compare them with the puppy growth rate. Remember that as soon as you take your pet home, you are fully responsible for its health and proper growth. 

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