Bullmastiff Care: Training, Exercise and Health for a Large Companion

By Dr Duncan Houston

Quick Answer

Bullmastiffs need safe handling, early reward-based training, moderate activity and careful weight management. Their short coat is relatively easy to maintain, but their size, short muzzle and health risks require thoughtful care. Learn the signs of breathing distress and bloat, and review documented parental health screening before choosing a puppy.

Developed in Britain from Mastiff and Bulldog ancestry, the Bullmastiff is a substantial dog with a guarding history. Many are affectionate with family, but descriptions such as “gentle giant” cannot guarantee behaviour with visitors, children or other animals.

Prepare for strength and size

Consider your ability to manage the dog on a lead, transport it during illness and provide suitable resting space. Secure gates, nonslip flooring and a comfortable bed are useful. Supervise children and dogs together, since even friendly excitement can knock someone over.

Meet adult dogs and discuss the individual temperament with a breeder or rescue. First-time ownership is not automatically impossible, but access to experienced support and commitment to training matter. Do not choose the breed on the assumption it will naturally know whom to guard against.

Train for calm, manageable behaviour

Reward loose lead walking, four paws on the floor, waiting at doors and settling away from visitors. Begin gentle handling of paws, ears and mouth early. Introduce unfamiliar experiences gradually without forcing interaction.

Use barriers and a quiet area when visitors arrive until your dog can cope comfortably. Avoid confrontational handling or punishment for growling. Fear, pain or escalating guarding needs veterinary and qualified behaviour support, rather than deliberate protection training.

Exercise within comfortable limits

Provide daily walks, sniffing, suitable play and mental activities, with intensity adjusted for age, fitness and weather. Build up gradually. Growing puppies should not be pushed into long runs or repeated high-impact exercise.

Bullmastiffs can be affected by obstructed airways associated with a short muzzle. Persistent snoring with disturbed sleep, noisy breathing, gagging or poor exercise tolerance warrants assessment. Avoid heat and humidity, provide water and rest, and stop if breathing becomes difficult. Collapse, blue or grey gums or severe breathing effort is an emergency.

Food, skin and everyday prevention

Use a complete diet appropriate to life stage, with a suitable large-breed growth formulation for puppies. Measure portions and check body condition regularly. The goal is steady growth and a lean adult, not maximum size. Extra calcium or routine supplements can be inappropriate for a balanced puppy diet.

Brush the short coat, inspect skin folds and keep them clean and dry where needed. Redness, odour, discharge or rubbing can indicate irritation or infection. Check ears, maintain nails and work towards daily toothbrushing. Follow a veterinary plan for vaccination, parasite prevention and dental care.

Health screening and signs to investigate

The American Bullmastiff Association recommends screening breeding dogs' hips, elbows, thyroid, eyes and heart. Ask to see the results and discuss family history. Screening reduces some risks but does not guarantee lifelong health, and a pet's ongoing testing should be tailored to clinical findings.

Repeated limping, stiffness or difficulty rising may reflect joint disease or injury. Squinting, rubbing an eye or excessive tearing may occur with eyelid problems such as entropion, where the lid turns inward, but other painful eye conditions can look similar. Arrange prompt examination rather than trying leftover eye drops.

Have new lumps, persistent swelling, unexplained weight loss or major appetite changes checked. Some cancers occur in the breed, but appearance alone cannot identify a lump or predict its seriousness.

Bloat needs immediate action

Repeated attempts to vomit without producing much, drooling, restlessness, abdominal enlargement or weakness can indicate gastric dilatation-volvulus, or GDV. Go to an emergency vet immediately; do not wait for obvious swelling or try home remedies.

Splitting food into meals may be useful, but no feeding or exercise schedule removes the risk. Raised bowls are not a bloat-prevention recommendation. Discuss whether preventive gastropexy suits your dog's risk and health; it reduces stomach twisting but cannot prevent all stomach expansion.

Frequently asked questions

Does a calm Bullmastiff still need training?

Yes. Calm temperament does not teach lead manners, handling or safe greetings, and strength makes these skills especially valuable.

Is loud breathing normal for the breed?

It may be common, but should not be dismissed. Breathing that affects sleep, exercise or comfort needs assessment.

Should a puppy be fed extra to reach full size?

No. Overfeeding can create excess weight and does not improve healthy development. Follow body condition and growth with your vet.

Can small meals guarantee protection from bloat?

No. Know the emergency signs and discuss individual prevention options.

Further reading includes the American Bullmastiff Association, Cornell's airway guidance and ACVS information on GDV.

ASK A VET™ can help you plan your Bullmastiff's care and decide when changes in breathing, movement or appetite require veterinary attention.