Basic FAQs

Do French Bulldogs have an Underbite? Is it Dangerous?

Do French Bulldogs have an Underbite? Is it Dangerous?

Yes, it is common for French Bulldogs to have an underbite, where the lower jaw extends beyond the upper jaw. This trait is a part of their distinctive brachycephalic, or “short-headed” facial structure. An underbite is not typically a health concern for Frenchies unless it is severe enough to affect their ability to eat or breathe. Owners should be aware of their Frenchie’s dental health, ensuring that any issues arising from their unique jaw alignment are addressed to maintain overall oral health.

French Bulldogs Underbite

What is Underbite in French Bulldogs?

An underbite in French Bulldogs refers to a specific dental and jaw alignment where the lower jaw protrudes beyond the upper jaw, making the lower teeth visible even when the mouth is closed. This condition is a common breed characteristic resulting from their brachycephalic facial structure. It’s generally not a health concern unless it impacts the dog’s ability to eat or breathe comfortably. Regular dental check-ups are advised to monitor and manage potential issues arising from this condition.

Is Underbite Dangerous for French Bulldogs?

An underbite in French Bulldogs is not dangerous and is often considered a regular feature of their physical appearance. However, severe cases can lead to dental issues, such as misaligned teeth, increased wear, or difficulties chewing and eating.

Sever underbites can also sometimes contribute to breathing difficulties, especially in a breed already prone to respiratory issues due to their brachycephalic nature. Therefore, owners need to monitor their Frenchie’s dental and overall health, seeking veterinary care to address potential complications.

Is Underbite Dangerous for French Bulldogs

Why do French Bulldogs have Underbite?

Dental Issues

Dental issues can sometimes exacerbate the appearance of an underbite. Misalignment of teeth, overcrowding, or abnormal growth can make the underbite more pronounced. Regular dental check-ups and care can mitigate related issues, ensuring the dog’s comfort and oral health.

Skeletal Issues

Skeletal issues refer to the physical structure of the skull and jaw. In French Bulldogs, the shortened head, a characteristic of brachycephalic breeds, often leads to a pronounced underbite. This is a structural trait rather than a health issue but requires monitoring.


Genetics plays a significant role in developing an underbite in French Bulldogs. It’s a hereditary trait passed down through generations and is considered a breed standard. Though common, variations in severity can occur due to genetic diversity.


Though not a common cause, infections in the jaw area during the French Bulldog developmental stages can lead to an underbite. Diseases can affect the growth and alignment of the jaw and teeth, necessitating early intervention and treatment.

Developed by Behaviors

Certain behaviors, like persistent chewing or biting on objects, can impact the alignment of the jaw and teeth, contributing to an underbite. Monitoring and modifying such behaviors can help manage the underbite’s extent.

Nutritional Factors

Proper nutrition during the developmental stages of a French Bulldog can influence their dental and skeletal health. Balanced nutrition ensures that the jaw and teeth develop optimally, minimizing the risk of exacerbating an underbite.

Hormonal Imbalance

Hormonal imbalances, especially during the growth phase, can potentially influence jaw and teeth development. Ensuring hormonal health through regular veterinary check-ups can mitigate abnormal actions associated with an underbite.

Why do French Bulldogs have Underbite

Health Issues & Risks Associated with French Bulldog Underbite

Dental Misalignment

Dental misalignment is a common issue associated with an underbite. It can lead to uneven wear of the teeth, difficulties in chewing, and increased risk of dental diseases. Regular dental check-ups are essential to monitor and address potential issues, ensuring oral health.

Gum Diseases

An underbite can sometimes expose the gums to more wear and tear. This exposure can lead to an increased risk of gum diseases and infections. Maintaining oral hygiene and seeking professional dental care can mitigate these risks.

Breathing Difficulties

French Bulldogs, being brachycephalic, already have a predisposition to breathing issues. An extreme underbite can exacerbate these problems, making monitoring respiratory health crucial and seeking interventions as needed to ensure comfort and well-being.

Trauma to the Mouth

The protruding lower jaw can sometimes be more susceptible to injuries or trauma, especially during play or exploration. Owners should be vigilant and take preventive measures to minimize the risk of injuries to the mouth area.

Difficulty in Chewing and Eating

A pronounced underbite can sometimes affect a dog’s ability to chew and eat properly. Ensuring the dog can eat comfortably and providing appropriate food that’s easy to consume can help manage this issue.

Speech and Communication Issues

While dogs don’t speak, they use vocalizations in communication. An underbite can sometimes impact the variety or clarity of a dog’s vocalizations. Observing and understanding individual communication patterns is essential.

Health Issues & Risks Associated with French Bulldog Underbite

How do I know that my French Bulldog has Underbite?

  • The lower jaw visibly protrudes beyond the upper jaw.
  • Lower teeth are visible even when the mouth is closed.
  • Misalignment or crowding of teeth is observable.
  • The dog may have difficulty picking up food or toys.
  • Chewing and eating habits appear awkward or strained.
  • There is noticeable wear or damage to the teeth or gums.
  • The dog may have occasional difficulty in closing its mouth completely.
  • Changes in vocalization patterns or sounds due to jaw structure.
  • There might be repeated injuries or sensitivity around the lower jaw area.
  • Breathing patterns can be affected, especially in severe underbite cases.

How do I know that my French Bulldog has Underbite

How to Fix French Bulldog Underbite? Professional Treatments

Teeth Extraction

Teeth extraction can sometimes be necessary if the underbite leads to overcrowding or misalignment of teeth, causing pain or difficulty eating. Removing specific teeth, especially in severe cases, can provide relief, improve comfort, and enhance the dog’s ability to eat and drink effectively.

Teeth Filling

In cases where the underbite results in uneven teeth wear, fillings can be applied to restore the shape and function of the teeth. This procedure helps prevent further wear, improve chewing efficiency, and reduce the risk of dental diseases.

Teeth Cleaning

Regular professional teeth cleaning is essential to manage oral health in French Bulldogs with an underbite. It helps in removing plaque and tartar, preventing gum diseases and infections, and ensuring that the oral cavity remains healthy despite the structural misalignment.


Orthodontic interventions like braces can sometimes be considered to correct teeth alignment in dogs with an underbite. It’s a specialized treatment to improve oral function aesthetics and reduce associated health risks.

Ball Therapy

Ball therapy involves encouraging the dog to play with a ball or similar toy to correct the underbite over time naturally. It promotes the exercise of jaw muscles and can, in some mild cases, aid in aligning the jaws more appropriately.

Orthodontic Appliances

In some cases, specialized orthodontic appliances can gradually correct the jaw alignment. These devices are custom-made and should be used under the supervision of a veterinary orthodontic specialist to ensure safety and effectiveness.

How to Fix French Bulldog Underbite Professional Treatments

How to Treat French Bulldog Underbite Naturally?

Chew Toys

Providing appropriate chew toys can naturally help in addressing minor underbite issues. These toys encourage the exercise and strengthening of jaw muscles, potentially improving alignment. Ensure toys are size-appropriate and safe for chewing.

Nutritional Support

A balanced diet rich in essential nutrients supports overall jaw and teeth health. Foods rich in vitamins and minerals promote bone and dental health, potentially minimizing the impact of an underbite and supporting natural correction.

Regular Massage

Massaging the dog’s jaw and facial area can improve blood circulation and muscle tone. Regular massages with caution and gentleness can contribute to the natural adjustment of minor underbite issues.

Stress Reduction

Stress can exacerbate health issues, including those related to jaw alignment. Providing a stress-free environment, regular exercise, and mental stimulation can support overall well-being and potentially aid in naturally managing underbite issues.

Proper Hydration

You ensure your French Bulldog stays well-hydrated and supports overall tissue health, including gums and jaw. Proper hydration can contribute to the maintenance and potential natural correction of minor jaw alignment issues.

How to Treat French Bulldog Underbite Naturally

How to Prevent Underbite in French Bulldogs?

  • Ensure proper nutrition from puppyhood.
  • Avoid the use of plastic bowls to prevent potential irritation or allergies.
  • Provide appropriate chew toys that promote proper dental and jaw development.
  • Manage and minimize stress for your Frenchie.
  • Schedule regular vet check-ups to monitor and address any early signs of dental or jaw issues.
  • Ensure puppies have ample opportunities for natural jaw exercises
  • Avoid exposing young French Bulldogs to hard or overly burdensome objects
  • If breeding, select mates without extreme underbites

Caring for a French Bulldog with Underbite

  • Regular Dental Check-ups: Schedule routine dental examinations with the vet to monitor the condition of the teeth and gums. Addressing any dental issues promptly can prevent complications arising from the underbite.
  • Oral Hygiene: Maintain good oral hygiene to prevent gum diseases and infections. Regular brushing and dental chews can help keep the teeth and gums healthy.
  • Appropriate Diet: Provide a diet that is easy to chew and digest, considering the structural alignment of the jaws. Specialized dog food formulations or softer foods can make eating more comfortable for the dog.
  • Comfort Measures: Ensure the dog’s comfort by considering its underbite when selecting toys, food bowls, and other items to make eating and playing easy and comfortable.
  • Stress Management: Manage and mitigate stress, which can sometimes exacerbate health issues. Provide a calm environment, mental stimulation, and regular exercise.
  • Safety Measures: Take precautions to avoid injuries or trauma to the protruding lower jaw, especially during play or interactions with other dogs or environmental elements.

Caring for a French Bulldog with Underbite

Best Food for French Bulldog with Underbite

Soft Kibble

Soft kibble can be easier for a French Bulldog with an underbite to chew and digest. The smaller and softer pieces are more manageable, ensuring the dog receives adequate nutrition without struggling to chew the food effectively.

Wet Dog Food

Wet dog food is another excellent option, as it’s soft and easy to eat. It not only provides the necessary nutrients but also aids in hydration. For Frenchies with an underbite, it can make mealtime less challenging and more enjoyable.

Raw Diet

A raw diet consisting of raw meats, bones, fruits, and vegetables can be customized to suit individual dogs. The food can be cut into manageable sizes for French Bulldogs with an underbite to facilitate easier chewing and digestion.

Grain-Free Options

Some French Bulldogs may have allergies or sensitivities to certain grains. Grain-free food options can be beneficial in such cases, reducing allergic reactions and promoting overall skin and oral health.

Customized Homemade Meals

Preparing homemade meals allows owners to control the ingredients and consistency of the food. For Frenchies with an underbite, meals can be tailored to be soft and easy to eat, packed with essential nutrients to support overall health.

Nutrient-Rich Supplements

In addition to the primary diet, including nutrient-rich supplements can ensure that the dog gets all essential vitamins and minerals. Especially for dogs with dental issues, supplements can support overall health and vitality.


Do all French Bulldogs have an underbite?

Not all French Bulldogs have an underbite, though it is a common trait in the breed due to their brachycephalic skull structure. The severity and presence of an underbite can vary from one dog to another based on individual genetic variations.

Do French Bulldog underbites get worse with time?

The progression of an underbite in French Bulldogs can depend on various factors, including genetics, diet, and overall health. In some cases, it may become more pronounced as the dog grows, while in others, it remains stable.

Is medical treatment required for French Bulldog underbites?

Not always. Medical intervention for underbites in French Bulldogs is typically considered if the condition affects the dog’s ability to eat and breathe or leads to other health complications. Otherwise, regular monitoring and care are often sufficient for managing the disease.

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