When Do Puppies Stop Growing?

When Do Puppies Stop Growing

When it comes to adopting a puppy, the most important thing you should know is how she will grow and when she will stop growing. This will help you know all of your puppy’s desires and needs in her life.

Just like other common mammals, puppies stop growing after reaching their mature size. On the other hand, many dogs continue to grow over the next months because most pooches reach their utmost height by 1 year of age approximately.

However, some of them stop growing earlier which may involve different factors. We’ll discuss these differences and the factors that affect your dog’s growth.

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When Do Puppies Stop Growing

Even though puppies are said to be adult dogs when they get one year old, most puppies pursue to grow size and height during their bone development, which takes around 6 to 24 months.

Generally speaking, pups grow in the same way as human kids do. However, there is a slight difference which is of their bones.

According to research, when a dog’s growth plates cease to produce new tissue and get calcified completely, they are considered to be closed,’ demonstrating towards the growth stoppage because the bones are at their final size.

But it must be noted that even after bone development, dogs still continue to grow as human adults do.

The Main Factors That Alter the Dog’s Growth Rate

However, if your puppy isn’t of the age of 1 year and has stopped growing, there might be three factors behind it as below:

  • Breed
  • Other genetic factors
  • Sex

Here are some profound details that when and why dogs are expected to stop growing.

1. Breed size

It is quite difficult to observe the main reason behind the stoppage of the dog’s growth. However, the genetic history of your pet, i.e. their breed could be the best indicator. Small dog breeds are more likely to reach their adult size and sexual maturity rapidly as compared to larger dog breeds.

So, if you want to figure out that when your pup will cease to grow, do consider his genetic history. Check if your puppy is a Great Dane or Chihuahua. Were his parents big or small for their breed?

You can also figure out your puppy’s growth against the following guidelines:

  • Small dog breeds:

Small dog breeds refer to the breeds which are almost 22 pounds in their adulthood and reach full maturity in 12 months.

  • Medium dog breeds:

Medium dog breeds refer to the dogs that weigh around 22 to 50 pounds during adulthood and stop growing within 8 to 12 months.

  • Large dog breeds:

Large dog breeds are pets that are almost 50 to 100 pounds when reaching as adults and growing in 16 months.

2. Genetic Differences

Every pup is born with his unique genetic code that could particularly affect the duration of his growth, his adult size as well as his build.

Some genetic qualities are transferred from parents to the puppy; however, others are the result of the significant changes that take place during DNA recombination.

3. Nutrition

Puppies having a poor diet cannot be able to get all of the protein and minerals, especially required during the growth period. That’s why to boost your pup’s energy and make him healthy, you must feed him the food full of minerals, specially made for puppies.

4. Spay/Neuter Timing

If puppies are neutered or spayed too early, their growth plate will get affected severely. It may also grow your pet taller than normal, becoming the main cause of joint pains in his life later on.

The exact timing of spay is right after the puberty of your puppy or when they are completely grown up. Spaying or neutering at the right time can save your dog from many health issues.


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