Close-up portrait of a Bullmastiff showing natural drooling with saliva strands visible from their loose jowls, illustrating the breed's characteristic drooling tendency discussed in the article
8 min read
Published on November 3, 2025

Why Does My Bullmastiff Drool So Much: Understanding Their Saliva Production

Bullmastiffs drool due to loose lips and large jowls that can't contain saliva. Learn when normal drooling becomes concerning and how to manage it effectively.

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At a glance

  • Bullmastiffs drool more than most breeds due to their loose lips and large jowls, which can't effectively contain saliva
  • Normal drooling occurs around food, excitement, or drinking, but sudden increases may signal dental disease or health issues
  • Regular dental care is crucial since oral problems are a leading cause of excessive drooling in the breed
  • Watch for warning signs like bad breath, difficulty eating, or drooling accompanied by lethargy

You might notice your Bullmastiff leaving wet spots on your furniture or creating small puddles after drinking water. Many owners worry when they see the amount of drool these dogs produce, wondering if something's wrong with their companion. The reality is that drooling is largely normal for this breed, though understanding when it crosses into concerning territory can help you keep your dog healthy and comfortable.

When it comes to saliva production in Bullmastiffs, anatomy plays the starring role. Their loose, pendulous lips and prominent jowls simply can't contain saliva the way a German Shepherd's or Border Collie's mouth structure can. This means that even normal amounts of saliva end up dripping rather than being swallowed, creating the impression of excessive production when it's really about poor containment.

Why your dog's facial structure creates the perfect drooling conditions

Detailed side profile of a Bullmastiff's head showing the loose lips and prominent jowls that create natural pockets for saliva collection, explaining the anatomical cause of drooling

The distinctive appearance that makes these dogs so appealing also creates their drooling tendency. Those large, soft jowls that give them such an expressive face act like pockets where saliva naturally collects. Unlike breeds with tighter lip lines, your dog's saliva has nowhere to go but out and down.

Research tells us that the saliva production itself isn't necessarily higher than other breeds. Instead, the facial anatomy means that saliva escapes more easily, especially after drinking, eating, or during periods of excitement. You'll often see the most drooling right after your dog has had a drink or when they're anticipating their dinner.

This breed characteristic becomes more noticeable during certain activities. Food anticipation triggers increased salivary gland activity as part of normal digestion, and when combined with those loose lips, the result is often strings of drool that can reach impressive lengths.

Recognising when normal drooling becomes a health concern

Sometimes the reasons behind increased drooling are medical rather than anatomical. Dental disease stands out as the most common culprit, with conditions like gingivitis, tartar buildup, or broken teeth causing pain and inflammation that stimulates excessive saliva production.

Many dogs show subtle signs before drooling becomes obviously problematic. Bad breath often appears first, followed by difficulty eating or visible discomfort when chewing. You might notice your dog pawing at their mouth or showing reluctance to eat hard foods they previously enjoyed.

Mouth injuries present another category of concern. These dogs are prone to chewing objects that might cause abrasions, cuts, or burns inside their mouths. Oral tumors or growths, while less common, can also trigger increased drooling and should be evaluated promptly.

Nausea and gastrointestinal upset can stimulate excessive salivation as well. If drooling appears alongside vomiting, diarrhea, or lethargy, veterinary evaluation becomes necessary to rule out systemic illness or toxin ingestion.

The crucial role of dental care in managing drooling

Bullmastiff receiving dental care with someone brushing their teeth using proper dog toothbrush and toothpaste, demonstrating essential oral hygiene practices for managing drooling

Regular oral hygiene forms the foundation of drool management for these dogs. Daily tooth brushing with dog-safe toothpaste helps prevent the dental disease that commonly leads to problematic drooling. Most dogs adapt to brushing within a few weeks when introduced gradually.

Professional dental cleanings, typically recommended annually or biannually depending on your dog's oral health, can cost between $300-800 per session but prove essential for removing tartar buildup that home care can't address. Your veterinarian may recommend more frequent cleanings if your dog shows signs of gum disease.

Dental chews and enzymatic products provide additional support between brushings. Products like Greenies or Virbac C.E.T. chews can help reduce tartar formation, though they shouldn't replace regular brushing and professional care.

Practical solutions for living with a drooling dog

Managing the mess becomes part of daily life with these dogs. Absorbent bandanas or drool bibs help protect furniture and clothing while keeping your dog more comfortable. Look for soft, washable materials that won't irritate the skin around their neck and chest.

Regular face cleaning prevents skin irritation from constant moisture. Soft microfiber cloths or pet-safe wipes work well for daily maintenance, though avoid scented products that might cause skin reactions. Many owners find that establishing a routine of wiping their dog's face after meals and drinks helps manage both mess and hygiene.

Strategic placement of washable rugs or mats near food and water bowls can protect flooring while making cleanup easier. Some owners also find that elevated food bowls reduce the amount of drool that reaches the floor, though this varies between individual dogs.

Warning signs that require veterinary attention

Sudden increases in drooling often signal underlying problems that need professional evaluation. If your typically moderate drooler suddenly starts producing significantly more saliva, especially when accompanied by other symptoms, veterinary examination can identify treatable causes.

Behavioural changes alongside increased drooling deserve particular attention. Loss of appetite, lethargy, difficulty swallowing, or signs of pain when eating all suggest problems that extend beyond normal breed characteristics.

  • Foul odour from the mouth that doesn't improve with dental care
  • Visible swelling, bleeding, or growths in the mouth
  • Signs of systemic illness like vomiting, diarrhea, or trembling

Veterinarians typically perform oral examinations and may recommend dental X-rays or blood tests to diagnose underlying causes. Treatment might include professional dental cleaning, antibiotics for infections, or surgery for more serious conditions like tumors or severe injuries.

Creating realistic expectations for drool management

Complete elimination of drooling isn't a realistic goal for most of these dogs. Instead, focus on maintaining good oral health and managing the normal amount of drool that comes with the breed. Many owners find that consistent dental care and daily face cleaning create a manageable routine.

Understanding your individual dog's patterns helps distinguish normal from concerning drooling. Some dogs drool more during hot weather, others primarily around meal times. Tracking these patterns can help you identify when something changes and needs attention.

The investment in proper dental care, quality cleaning supplies, and protective items for your home typically ranges from $30-60 monthly, not including professional cleanings. While this might seem significant, preventing dental disease through good maintenance costs far less than treating advanced oral health problems.

Living successfully with a drooling breed requires accepting this characteristic while staying vigilant about health changes. Regular veterinary checkups, consistent dental care, and attention to sudden changes in drooling patterns will help ensure your dog remains healthy and comfortable throughout their life.

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Frequently Asked Questions

Bullmastiffs drool excessively due to their unique facial anatomy. Their loose, pendulous lips and large jowls simply cannot contain saliva effectively like other breeds. Even normal amounts of saliva end up dripping because their mouth structure allows it to pool and escape easily. This is a natural breed characteristic rather than a health problem, though the amount can increase during excitement, eating, or drinking.
Yes, Bullmastiffs are naturally slobbery dogs. Their prominent jowls and loose lips make them one of the more drool-prone breeds. You'll typically notice wet spots on furniture, puddles after drinking, and saliva strings, especially around meal times or when they're excited. This slobbering is completely normal for the breed and part of owning a Bullmastiff.
While drooling is normal for Bullmastiffs, watch for sudden increases accompanied by bad breath, difficulty eating, lethargy, or visible oral discomfort. Excessive drooling combined with pawing at the mouth, swollen gums, or refusing food may indicate dental disease or oral injuries. If your Bullmastiff's drooling pattern changes dramatically or includes these warning signs, consult your veterinarian promptly.
Regular dental care is crucial for Bullmastiffs since oral problems are a leading cause of excessive drooling in the breed. Dental disease, including gingivitis, tartar buildup, and broken teeth, can trigger increased saliva production and worsen natural drooling. Maintaining good oral hygiene through regular brushing, dental chews, and professional cleanings helps prevent dental-related drooling increases.
Seek immediate veterinary care if your Bullmastiff's drooling is accompanied by difficulty swallowing, excessive pawing at the mouth, swollen face or neck, vomiting, lethargy, or signs of pain. Sudden onset of profuse drooling with breathing difficulties could indicate a foreign object lodged in the mouth or throat. Any dramatic change in drooling patterns combined with other symptoms warrants emergency attention.
Treatment costs vary significantly depending on the underlying cause. Basic dental cleanings typically range from $400-800, while treating dental disease may cost $800-2,000 including extractions. If oral surgery or specialist treatment is needed, costs can reach $2,000-4,000. Regular preventive dental care costs $200-500 annually but helps avoid more expensive treatments. Costs vary by location and veterinary clinic, so consult your local veterinarian for specific estimates.
Keep drool towels handy and wipe your Bullmastiff's mouth regularly, especially after eating and drinking. Use elevated food and water bowls to reduce mess. Brush their teeth 2-3 times weekly and provide dental chews to maintain oral health. Consider waterproof furniture covers and place mats under food bowls. Regular grooming around the mouth area helps prevent skin irritation from constant moisture.
While you cannot eliminate natural drooling in Bullmastiffs due to their anatomy, you can minimise excessive drooling through proper dental care, regular veterinary check-ups, and maintaining good oral hygiene. Feeding smaller, more frequent meals and using puzzle feeders can reduce excitement-related drooling. However, some level of drooling will always be present in this breed and should be accepted as normal behaviour.

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