When Do French Bulldogs Heads Split?

By Coty Perry

French Bulldogs have a unique appearance, especially in their head and faces. A French Bulldog’s head makes them stand out compared to other dogs. Typically, their heads split somewhere between 9 and 12 months old. 

Your French Bulldog is maturing, but his head is not growing fast enough. Depending on the breed, heads can split at different ages. A French Bulldog is an example of a breed that takes longer for its head to split. 

When Do French Bulldogs Heads Split?

A French Bulldog’s head splits somewhere between 9 and 12 months old. Your pup’s skull will not change much after he reaches one year old. The head will not grow after that point, but it may appear to bulk out. 

It may look bulky even when it stops growing due to muscular toning and a gain in fat. Your Frenchie’s head is appropriate for his overall size as he grows.

Your pup is a Brachycephalic breed, so that he will have a broad skull and a shortened muzzle. This type of facial structure is also common in popular dog breeds like Bulldogs, Boxers, Pugs, and Pekingese dogs.

Why Do Some French Bulldogs Have Larger Heads?

Some French Bulldogs have larger heads because of their size. Typically, all French Bulldogs have an average length of their heads, but it can change depending on the size of their bodies. If one French bulldog eats more than another, it might have a larger build because of fat and muscle tone.

Why Do French Bulldogs Heads Split?

A French Bulldog’s head does not actually split. When his head splits, it means that the crevices or lines that appear in the center of his head are more prominent as he matures. The cracks in the middle of his head will deepen and increase in size as he gets older—facial muscle mass changes, which becomes more robust over time. 

Final Thoughts

French Bulldogs have large heads that begin to split between 9 and 12 months of age. It is usual for your French Bulldog’s head to change as he matures and grows. These changes are due to changes in muscle structure and fat. 

If you overfeed your French Bulldog, you might also notice an increase in the size of his head due to extra calories. Once your pup reaches a year old, do not expect much of a change in his head. It might look more extensive, but this is due to muscle and fat growth, not skull growth.

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Coty Perry
Coty is a self-proclaimed cat whisperer and animal lover. Growing up his mom ran a dog training business out of his childhood home so you can say it was complete chaos 24/7. Today, when he comes home after a long day of writing about animals, he’s greeted by his two loving cats Marley and Cozmo.