An open fontanel is a small soft spot on the top of a puppy’s skull where the bones have not yet fully fused. While commonly discussed in toy breeds, open fontanels can occasionally be observed in English Bulldogs as well. In most cases, this condition is mild, non-life-threatening, and does not affect a puppy’s quality of life.
At WB English Bulldogs, we believe in transparency and education so families understand what this condition is, what it means long-term, and why it is not covered under our health warranty.
1. What Is an Open Fontanel?
A fontanel is a normal gap between skull bones present at birth that allows the puppy’s head to grow during early development. In most dogs, these gaps close naturally as the puppy matures.
An “open fontanel” refers to a fontanel that remains partially open longer than expected. In many cases, the opening is small and may close over time or remain stable without causing problems.
2. Causes and Risk Factors
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Open fontanels are considered a developmental skull variation, not a disease.
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They are congenital, meaning present from birth.
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Genetics and individual growth patterns may play a role.
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This condition is not caused by poor breeding, nutrition, or environmental factors.
3. Common Findings
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A soft or slightly depressed area on the top of the head
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No pain or discomfort in most cases
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Puppies are otherwise healthy, active, and developing normally
Veterinarians typically identify open fontanels during routine physical exams.
4. Health Implications
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Most open fontanels are small and clinically insignificant.
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Puppies with open fontanels can live normal, healthy lives.
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Owners should avoid trauma to the head, especially during puppyhood.
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In rare cases where the opening is large or associated with other neurological signs, further veterinary evaluation may be recommended.
5. Why Open Fontanels Are Not Covered Under Our Health Warranty
WB English Bulldogs’ one-year health warranty does not cover open fontanels because:
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They are a developmental and structural variation, not a disease.
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Most cases do not affect overall health, longevity, or function.
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They are not preventable through breeding management alone.
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Many close naturally or remain stable without requiring treatment.
Open fontanels do not interfere with a puppy’s ability to live as a healthy family companion.
6. Responsible Ownership and Care
Owners should:
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Handle puppies gently, especially around the head
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Avoid rough play or situations that could cause head trauma
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Follow veterinary guidance if monitoring is recommended
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Maintain regular veterinary checkups
With normal care and awareness, puppies with open fontanels typically experience no long-term issues.
7. Setting Proper Expectations
As professional English Bulldog breeders since 1998, WB English Bulldogs is committed to producing healthy puppies and educating families.
Open fontanels are a known developmental variation in dogs and are not covered under our health warranty, as they do not constitute a life-altering or function-limiting condition.
Sources & Professional References
Merck Veterinary Manual
American Veterinary Medical Association (AVMA)
VCA Animal Hospitals
American Kennel Club (AKC)
