Bullmastiff: Breed Characteristics & Care

Bullmastiff: Breed Characteristics & Care

Bullmastiff is a large and loyal dog breed famous for their roles as guard dogs. They’re mellow, affectionate, and patient, which makes them excellent family pets. Due to their size and drool-prone mouths, they need space to live in and specialized care. If you’ve got the right environment to provide for a Bullmastiff, though, it’ll be your best friend for life!


Bullmastiffs are powerful dogs, so they require daily exercise and training to keep them from becoming rambunctious. They can be trained easily, but they will need strong leadership from their owners in order to become well-behaved pets.

They make excellent guard dogs because of their protective nature and loyalty toward their families; however, this trait also makes them territorial around strangers, so it’s important for owners to train bullmastiffs before allowing them to meet visitors in person—especially children!


The Bullmastiff is calm, loyal, and protective. These dogs are not aggressive but will protect their families from any threat. They are not hyperactive but have a playful personality, which can make them good companions for children or other pets in the home.

Bullmastiffs are not ideal for inexperienced owners and can be headstrong, so they need a firm hand during training. They also have a tendency to drool.

Height and Weight

The average height of a Bullmastiff is 27-31 inches (69-79 cm) for males and 25-29 inches (63-74 cm) for females. The average weight of a Bullmastiff is 100-130 pounds (45-59 kg) for males and 90-120 pounds (41-54 kg) for females.


The Bullmastiff’s short, smooth coat makes it an ideal companion for those who don’t want to spend a lot of time maintaining their dog. The breed has no undercoat, so it sheds very little and doesn’t require bathing or brushing. It only needs to be brushed once every two months or so, but if you do brush your Bullmastiff more frequently, there is no reason why you shouldn’t!

The Bullmastiff doesn’t need to be trimmed or shaved as its fur grows in a way that keeps itself free of mats and tangles. If you do decide to trim the fur yourself, just make sure that you don’t go too short or cut too much off at once because this could cause irritation on your dog’s skin.

Grooming Needs

Grooming the Bullmastiff is easy and requires minimal effort. The breed has a thick coat that sheds minimally, and it can be groomed using a rubber brush or pin brush. The Bullmastiff’s ears need regular cleaning to prevent the buildup of wax and ear infections.

Bullmastiffs typically live for 8 to 10 years, but some individuals have been known to live up to 13 years.

Bullmastiff: Breed Characteristics & Care

Training Needs

Training your dog is a great way to bond with them and understand their needs. Not only can it be fun for both you and your dog, but it’s an essential part of responsible dog ownership. A well-trained dog will be less likely to develop behavioral problems, and you’ll have peace of mind that he or she will listen when you need them to!

Health Issues

The Bullmastiff has a lifespan of 8-10 years. The average lifespan is 9 years. Temperament Bullmastiffs are loyal, protective, and affectionate dogs. They were bred to be guard dogs, so they can seem intimidating—however, they are not aggressive toward people or other animals if socialized early on.

  • Allergies. Bullmastiffs have a tendency to suffer from skin allergies and infections, so you will need to keep an eye on your pooch’s skin and fur. It’s important that they are bathed regularly and given regular ear cleanings as well (twice a week should be adequate).
  • Hip dysplasia. This is a genetic disorder that results in the hip joints not being properly formed in puppies, which can lead to pain later on in life. If your puppy has hip dysplasia, he or she may experience stiffness when running or jumping, difficulty walking up stairs or slopes, and trouble getting into car seats or couches/cages; your vet can help you determine whether your pup has this condition by performing X-rays on his hips. There are medications that can be prescribed for treatment; however, this disease cannot be cured completely—it is advisable for owners of affected animals to monitor the condition closely with regular visits to the vet until their pet reaches adulthood (about age two), at which point surgery may be an option if necessary.

Personality and Behavior

You’ll find that the Bullmastiff enjoys being around people. They are very loyal and protective of their families, but they can also be calm and gentle. This breed does well with children because they have a laid-back temperament.

Bullmastiffs are good with other dogs and other pets as long as you socialize them early on in life. They will get along fine with strangers too because this breed is generally friendly toward everyone they meet.

Bullmastiffs are mellow, loyal dogs with a guardian streak.

Bullmastiffs are not aggressive or dangerous dogs, but they do have a guardian streak. They’re protective and loyal to their family, but they can be territorial too. If you have other pets in your home or plan on having children someday, a bullmastiff may not be the right dog for you because they don’t always get along with kids or other animals.

Bullmastiffs are great companions that bond deeply with their owners and are eager to please them—they’ll respond well to training when they’re young. But once trained, these large canines prefer low-key lifestyles where their instincts aren’t challenged too much (like running around in open fields). They would rather lounge by your side at home than run around outside chasing after squirrels all day long!

Bullmastiffs are mellow, loyal dogs with a guardian streak.


If you’re looking for a protector and companion, the Bullmastiff may be the perfect fit. They have a mellow personality and are loyal to their family members. But because they are large dogs with a guardian instinct, they’re not right for everyone. It’s important to consider your lifestyle when thinking about adding a Bullmastiff to your home—for instance, they’re not going to do well in families that don’t have time or energy to devote lots of attention to them.