When Does an American Bully’s Head Growth Stop? A Comprehensive Guide

  • By: Andrew
  • Time to read: 5 min.

The American Bully is a popular dog breed in the United States. Developed in the 1990s as a show version of the American Pit Bull Terrier, the American Bully has become known for its muscular build and distinctive head shape. Many American Bully owners wonder when their dog’s head growth will stop.

According to experts, an American Bully’s head growth typically stops around 12 months of age. However, this can vary depending on the individual dog’s genetics and size. Larger American Bullies may take longer to reach full maturity, while smaller ones may mature more quickly. It’s important to note that while an American Bully’s head growth may stop at 12 months, the dog may continue to grow in other ways until it reaches its full adult size.

Understanding American Bully Head Growth

What is an American Bully?

The American Bully is a companion dog breed that was developed in the 1990s by crossbreeding American Pit Bull Terriers, American Staffordshire Terriers, and other dog breeds. American Bullies are known for their muscular build, broad chest, and well-defined jaws. They come in different sizes, including Standard, Classic, Pocket, and XL, and have a lifespan of 10 to 14 years.

When Does an American Bully’s Head Growth Stop?

An American Bully’s head growth typically stops between the ages of 12 and 18 months. The dog’s head begins expanding and developing around 9 months and continues to grow for some time. However, larger American Bullies may take a little longer to reach full maturity, and their head growth may continue until they are fully grown, which can take up to 24 months.

What Factors Affect an American Bully’s Head Growth?

Several factors can affect an American Bully’s head growth, including genetics, nutrition, and health. Genetics play a significant role in determining the size and shape of an American Bully’s head, as well as their overall growth. Proper nutrition, including a balanced diet and vitamins, is crucial for healthy growth and development. Health issues such as bone growth problems or growth plate injuries can also affect an American Bully’s head growth.

Why is it Important to Monitor an American Bully’s Head Growth?

Monitoring an American Bully’s head growth is essential to ensure they are growing at a healthy rate and to detect any potential health issues early on. It is also important to maintain proper balance and proportion between the head and body. An American Bully with an oversized head may have difficulty maintaining balance and may be prone to health issues such as neck strain or joint problems. On the other hand, an American Bully with an undersized head may look disproportionate and may have difficulty breathing or eating.

In conclusion, understanding an American Bully’s head growth is essential for their overall health and well-being. Proper care, including a balanced diet, regular exercise, and monitoring their growth, can help ensure they reach adulthood with a well-defined jawline, deep chest, and muscular build.

Determining the End of Head Growth

Determining when an American Bully’s head growth stops can be challenging due to the breed’s various sizes and genetics. However, there are a few methods that can help you determine when your Bully’s head growth has ended.

Measuring an American Bully’s Head

One way to determine the end of an American Bully’s head growth is to measure its head. Using a tape measure, measure the circumference of your Bully’s head at its widest point, which is usually just above the ears. Record this measurement and measure again after a few months. If the measurement remains the same, it is likely that your Bully’s head growth has stopped.

Using a Growth Chart to Determine Head Growth

Another way to determine the end of an American Bully’s head growth is to use a growth chart. The American Bully Head Growth Chart is an invaluable tool for breeders, exhibitors, and Bully enthusiasts. The chart allows you to easily track a dog’s progress as it grows from puppyhood to adulthood and provides an easy way to compare the growth of one animal to another.

According to the chart, an American Bully’s head growth usually stops between 12 to 18 months of age. However, the growing period may prolong up to 24 months for larger American Bullies. By comparing your Bully’s head size to the chart, you can determine whether its head growth has ended or not.

In conclusion, determining the end of an American Bully’s head growth can be challenging due to various factors. However, measuring your Bully’s head and using a growth chart can help you determine when its head growth has stopped.

Maintaining an American Bully’s Health

As an American Bully owner, maintaining your dog’s health is crucial to ensure a long and happy life. Here are some tips on how to keep your American Bully healthy.

Diet and Exercise for an American Bully

American Bullies require a diet rich in protein to support their high muscular content. A diet that includes lean meats, such as chicken and fish, is ideal. Avoid feeding your dog table scraps, as they can be high in fat and unhealthy for your pet.

In addition to a proper diet, regular exercise is essential for an American Bully’s health. These dogs have a lot of energy and need to burn it off through daily walks, playtime, and other physical activities. Lack of exercise can lead to obesity, which can cause health issues such as joint problems, heart disease, and diabetes.

Common Health Issues in American Bullies

Like all dogs, American Bullies can suffer from various health issues. Some common health problems in American Bullies include allergies, dysplasia, eye problems, and skin infections. If you notice any signs of ill health, such as loss of appetite, lethargy, or coughing, contact your veterinarian immediately.

Regular Vet Check-Ups for an American Bully

Regular check-ups with a veterinarian are crucial to maintaining an American Bully’s health. Your veterinarian can provide preventative care, such as vaccinations and parasite control, and detect any health issues early on. Be sure to schedule annual check-ups and follow your veterinarian’s recommendations for preventative care.

In conclusion, maintaining an American Bully’s health requires a proper diet, regular exercise, and regular check-ups with a veterinarian. By following these tips, you can help ensure a long and healthy life for your beloved pet.


In conclusion, the growth of an American Bully’s head can be influenced by various factors, including genetics, nutrition, and exercise. While some Bully puppies may experience head cracking as early as 12 months, others may continue to grow for another 2 or 3 years. It is essential to provide your Bully with a balanced diet, adequate exercise, and the right vitamins to promote healthy growth.

As your Bully grows, it is crucial to monitor their weight and body condition regularly. Use the American Bully growth and weight chart to track your dog’s progress and ensure that they are growing at a healthy rate. Remember that every Bully is unique, and their growth may vary depending on their breed and individual characteristics.

If you notice any unusual growth patterns or changes in your Bully’s behavior, consult with a veterinarian. They can provide you with valuable advice on how to maintain your Bully’s health and well-being.

In summary, understanding when an American Bully’s head growth stops can be challenging, but with proper care and attention, you can help your Bully grow into a healthy and happy adult dog.