Pit Bull Mastiff Mix: Training and Care Tips for Your Gentle Giant

Pitbull Mastiff Mix

The Pit Bull Mastiff Mix is a giant crossbreed between an American pit bull terrier and a Mastiff.

It has the strong, muscular build of the Pit Bull with the large, sturdy size of the Mastiff. These dogs often have a short coat, which can come in various colors and patterns. They usually have a broad head and powerful jaws, showing traits from both parent breeds.

In this article, I will talk about what it’s like to have a Pit Bull Mastiff Mix as a pet. We’ll look into their unique personalities, how to care for them, and what kind of exercise and training they need. I’ll also discuss their health. If you’re thinking about getting a Pit Bull Mastiff Mix or just want to learn more about them, read on!

Pit Bull Mastiff Mix Summary

Common NamesMastiff Pit Bull Mix, Pit Mastiff, Bullmastiff, American Pit Bull mix, and Masti-bull
Country of originEngland and Ireland
Height25 to 30 inches
Weight100 to 145 pounds
Colorsblack, white, brown, and brindle
Life expectancy8 to 12 years
Coatshort, smooth coat


Pit Bull Mastiff Mix Parent Breeds

Pitbull Mastiff Mix Dog

Pitbull History


Pit Bulls originally came from England and Ireland. They were first bred in the 19th Century. The goal was to make a dog that combined the strength of the Bulldog with the agility and energy of the terrier. Back then, people used these dogs for a cruel sport called bull-baiting, where dogs fought bulls for entertainment.

When this sport was banned, some people started using Pit Bulls for dog fighting, which is also very wrong and illegal. But over time, as people realized how friendly and loyal these dogs can be, Pit Bulls became more popular as family pets. They were also used as farm dogs, helping to herd animals and guard the property. In America, they became known as great companions and were even called “nanny dogs” because of how good they were with children.

Physical Characteristics

Pit Bulls are medium-sized dogs known for their muscular and strong bodies. They usually weigh between 30 to 70 pounds, and they’re about 17 to 19 inches tall at the shoulder. They have a short, smooth coat that comes in many colors like black, white, brown, and brindle. Pit Bulls have a broad, flat head and a powerful jaw, which is a big part of their strong look.

Their ears can be pointy or floppy, and they have short tails. Despite their tough appearance, Pit Bulls are very athletic and agile. They have a lot of energy and love to play and run around. Their build shows both their strength and their ability to move quickly. This physical agility makes them great at dog sports like agility and obedience competitions.

Temperament and Behavior

Pit Bulls are known for their friendly and loving nature, especially towards people. They are often very affectionate with their family members and can be great with kids. Despite their tough appearance, many Pit Bulls are big softies who love to cuddle and be close to their humans. They are also known for being very loyal and protective of their families.

However, because of their past, they sometimes get a bad reputation. It’s important to know that how a Pit Bull behaves depends a lot on how it’s raised and trained.

With proper training and socialization from a young age, Pit Bulls can be well-behaved and friendly dogs. They are very intelligent and eager to please their owners, which makes them good at learning commands and tricks. But they do need exercise and mental stimulation, or they might get bored and chew on things they shouldn’t.

Mastiff History


The Mastiff is one of the oldest dog breeds in the world. They were originally from England and have a history that goes way back to ancient times. Thousands of years ago, they were used as guard dogs to protect people and their homes. They were also used in battles and as hunting dogs because of their size and strength. In Roman times, Mastiffs were famous for being brave and strong in fights.

During medieval times in England, they guarded castles and estates. They were so good at guarding that they were called the “Gamekeeper’s Night Dog.” Even though they were used for tough jobs, over the years, Mastiffs became more popular as family pets. They were loved for their loyalty and protective nature. Today, Mastiffs are known more as gentle giants who are great companions in homes rather than as working dogs.

Physical Characteristics

Mastiffs are huge dogs, and they’re one of the largest breeds in the world. They usually weigh anywhere from 120 to 230 pounds, and some can even be heavier. They stand about 27 to 30 inches tall at the shoulder. Mastiffs have a strong build with a broad chest and muscular body. They have a short coat in colors like fawn, apricot, or brindle. Their heads are massive with a wide skull, and they have a short muzzle.

Mastiffs have small eyes and ears that are set wide apart. Their tails are long and taper to a point. Even though they are so big, Mastiffs move with a surprising amount of grace and dignity. Their size can be intimidating, but it also makes them excellent at their traditional role as guard dogs.

Temperament and Behavior

Despite their size, Mastiffs are known for being gentle, calm, and loving dogs. They are very loyal to their families and can be protective if they think their loved ones are in danger. Mastiffs are often very patient and good with children, which makes them great family pets.

However, because of their size, they should be supervised around small kids. Mastiffs are not very active dogs, and they’re happy to relax most of the time. They do need regular exercise to stay healthy, but they don’t need as much as some other breeds. Mastiffs are intelligent dogs, but they can also be a bit stubborn.

They need consistent training from a young age. Socialization is also important for them to be well-behaved around other people and animals. Mastiffs are known for being quiet and not barking much, but they will bark if they need to alert their family.

Pit Bull Mastiff Mix History


The Pit Bull Mastiff Mix is a crossbreed of any pit bull breed with any mastiff breed. This mix is unusually versatile because of the number of dogs that can be bred to make them so their temperament, appearance, and size can vary.

First bred in the 20th Century, this Mastiff mix has been best friends to the rich and famous, with celebrity owners including Fred Astaire, Steve Irwin, Madonna, and Michael J Fox.

The American Kennel Club and English Kennel Club both recognize the Mastiff dog but do not recognize the Pit Bull. Therefore, the Pit Bull Mastiff is not recognized. However, many owners find community and advice in support networks like the Mastiff Club of America.

This breed has many names: Mastiff Pit Bull Mix, Pit Mastiff, Bullmastiff, American Pit Bull mix, and Masti-bull.

Physical Characteristics

Pitbull x Mastiff Mix
This breed looks observant and thoughtful.

With its sturdy build and muscular neck, this dog is often confused for a purebred Mastiff. These mixes usually have short, rose ears, drooping mouths, and short snouts from their Mastiff parent.


This Pit Mastiff usually weighs around 100 pounds with some growing to 150lb and they stand at around 25-30 inches tall. Their size and weight vary dramatically depending on their sex and the size of their parents. Typically, this mix has large to giant-sized dogs.

Color and Coat

Interestingly, this crossbreed does not have an officially recognized color pattern. Because they are a mix, they might be any combination of colors from red to black, grey to cream, or white. Most commonly, Pit Bull Mastiff mixes are black with dappled red coloring. Other popular combinations include blue and grey, and red and white.

Whilst not requiring cutting, they do need to be brushed regularly. This is because both Pit Bulls and Mastiffs are high-shedding breeds. They tend to shed year-round, especially around the fall and winter months.

Their coats may be brindled like the Brindle Pit Bull, patched, or Merle. There really are no rules!

Temperament and Behavior

One attribute that doesn’t vary is their protective nature. Their strong personalities make them incredible guard dogs for houses and livestock. There is a cultural misconception that they are ‘attack dogs’. However, this overlooks their receptiveness to training, obedience, and devotion to their owners.

With early socialization and committed training, a Pit Bull Mastiff Mix can be a docile, affectionate family dog. A busy household is ideal, as they thrive on attention and contact.

Provided they are socialized appropriately from a young age, this mix can be an incredibly loving docile pet. To make sure they are sociable, they must be introduced and allowed to play and interact with other people, dogs, and animals.

Because of their Mastiff parent, they are known for being confident and territorial. They are also highly intelligent, so with patience and training, they can learn to distinguish between threatening and non-threatening situations.

Finally, they are unlikely to howl or bark. They may greet you vocally when you arrive home, but they are a quieter breed.


Pitbull Puppies
Healthy puppies are sociable, responsive to interaction, and have no noticeable breathing or mobility problems.

Pit Bull Mastiff Mix litters usually range from between 5 to 10 puppies. These puppies grow very fast:

  • At 3 months old they weigh in at around 30 pounds.
  • By 6 months they will reach between 60 to 70 pounds.
  • At 9 months they will cross 80 pounds.
  • Finally, at around 12 months they will be 100 pounds or more.

Puppies can cost anywhere between $600 and $2,000. The price depends on the parents’ pedigree, and both the sire and dam should have health certificates proving they have been hip-screened. Fees also increase if breeders elbow-grade their breeding stock.

To avoid puppy mills, ensure the contract of the sale is valid and do not buy from breeders who don’t health-check their dogs or won’t allow viewing of the dam and puppies together.

Owners who are not prepared to commit to training this breed are sadly likely to abandon them. This is because they require careful and attentive training and socialization. This means many senior Pit Bull Mastiff Mix dogs are ready to rescue. Organizations dedicated to re-homing this breed include Mastiff to Mutt and the Southern States Mastiff Rescue.

Pit Bull Mastiff Mix Health Issues

Mastiff Mix

Understanding these concerns is crucial for ensuring the well-being of your gentle giant. From joint problems to heart conditions, we’ll cover what you need to know to keep your furry friend healthy and happy.

Hip Dysplasia

Hip dysplasia is a common health problem in many big dog breeds, like the Pit Bull Mastiff Mix. It happens when the hip joint doesn’t fit together perfectly, which can cause pain and trouble moving. This problem can start when a dog is still a puppy and grow worse as they get older.

Dogs with hip dysplasia might limp or have a hard time getting up and down. They might not want to run or jump as much as they used to.

Elbow Dysplasia

Elbow dysplasia is a lot like hip dysplasia, but it happens in the elbow joint. It’s another common issue in large dogs. This problem can make a dog’s elbow joint grow in a weird way, which hurts and makes it hard to move the joint. Dogs with elbow dysplasia might limp or not want to use their front legs as much.

Cardiac Issues

Cardiac issues mean problems with the heart. Big dogs like the Pit Bull Mastiff Mix can sometimes have heart problems. These problems can make it hard for the heart to pump blood the way it should. Signs of heart problems in dogs can include coughing, getting tired easily, and not wanting to play or exercise as much. If a vet thinks your dog might have a heart problem, they might do tests like X-rays or an ultrasound to check the heart.

Bloat (Gastric Dilatation-Volvulus)

Bloat, or gastric dilatation-volvulus, is a very serious problem that can happen in big dogs with deep chests, like the Pit Bull Mastiff Mix. It happens when a dog’s stomach fills with gas and then twists. This is an emergency and needs to be treated right away. Signs of bloat include a swollen belly, trying to vomit but not being able to, and acting very uncomfortable or in pain. If you think your dog has bloat, take them to the vet immediately.

Skin Allergies

Skin allergies are when a dog’s skin gets irritated and itchy because of things like pollen, dust, or certain foods. Pit Bull Mastiff Mixes can have skin allergies, which can make them scratch, bite, or lick their skin a lot. This can cause redness, sores, and hair loss. Providing nutritious food formulated for Pitbulls with skin allergies can significantly alleviate these symptoms and promote healthier skin and coat.


Obesity in dogs is when they weigh too much, and it’s a big problem for their health. It can make other health issues, like hip dysplasia, even worse. Dogs get obese from eating too much and not getting enough exercise.


Hypothyroidism happens when a dog’s body doesn’t make enough thyroid hormone. This hormone is important for a dog’s energy and metabolism. Signs of hypothyroidism can include weight gain, being tired a lot, and changes in the skin and coat. Vets can do a blood test to check for hypothyroidism.


Cataracts can happen in dogs when the lens in their eye gets cloudy. This can make it hard for them to see. Sometimes cataracts are caused by things like diabetes, but they can also just happen as a dog gets older.

Joint Problems (e.g. Arthritis)

Joint problems, like arthritis, are common in older dogs and big breeds like the Pit Bull Mastiff Mix. Arthritis is when a dog’s joints get inflamed and painful. This can make it hard for them to move around and do things they used to do easily. Dogs with arthritis might limp, have trouble getting up, or not want to play as much.

Ear Infections

Ear infections are when a dog’s ear gets infected by bacteria or yeast. This can be very uncomfortable and painful for a dog. Dogs with ear infections might shake their head a lot, scratch their ears, or you might notice a bad smell or discharge from their ears.

Feeding Guide for Your Pit Bull Mastiff Mix

Daily Food Consumption

  • Calories: ~2000
  • Cups of Kibble: ~3

This Mastiff mix loves raw meat and fish. A raw diet can help to maintain teeth and bone health better than canned or dry diets. For larger dogs, you can supplement raw with some kibble. Giving nutritious food for your Pitbull Mastiffs mix is essential to ensure their overall health.

They thrive on a 25% protein and 10% fat diet, and since their weight ranges from 100 to 150lb, the caloric intake varies. For a 100-pound dog, three meat-based meals (each with a cup of kibble) are suitable.

Your mix is likely to be happy with a meal in the morning after a walk, early afternoon, and in the evening.

Pit Bull Mastiff Mix Care Guide

It has a big appetite as it’s a large or giant-sized dog. Hence, a Pit Bull Mastiff Mix is best suited to experienced owners who are also financially able to support this breed’s high food intake and medical bills. However, ensure controlled feeding and exercise to maintain a healthy weight and avoid obesity.


As there is so much variation in the dogs that can be used to breed this mix, there is also a huge variety in their energy level and exercise needs. Most are active and require energy outlets such as playing with ropes, balls, and frisbees.

Chew toys are not likely to excite this breed as it has a low prey drive. Further, most dogs can keep up with a walk or hike for around 30-40 minutes each day.

Training Tips

The Pit Bull Mastiff Mix is obedient and receptive to training. They are very eager to bond and interact with their owners and are very intelligent. This means that from puppyhood, they need to be supervised, and positively trained.

Reward-based training is helpful for this breed since they are food-oriented. They are mostly motivated by praise and food because their pet/owner bond is strong. This crossbreed can be taught a range of dog tricks quickly, from sitting and lying down to giving paw, spinning, and playing dead.

Grooming Tips

This breed is relatively low maintenance requiring short periods of grooming as their coats are short and fine. It is important to brush your dog around twice a week to control shedding and build a bond. Also, clip their nails and brush their teeth around twice a week with dog-friendly toothpaste.

FAQs on Pitbull Mastiffs

Is the Pit Bull Mastiff Mix aggressive?

The Pit Bull Mastiff Mix is not inherently aggressive. The American Temperament Testing Society tested the aggression level of 841 pit bulls over their usual daily routine. They had an 87.6% pass rate, showing no hostile behavior. However, due to their size and strength, it’s crucial to train them well and manage them responsibly.

What is a Pit Bull Mastiff Mix?

A Pit Bull Mastiff Mix is a crossbreed between an American Pit Bull Terrier and a Mastiff. This mix combines the traits of both parent breeds, resulting in a large, muscular dog. They are known for their loyalty, strength, and gentle nature, making them popular among dog lovers who can handle a larger breed.

How big does a Pit Bull Mastiff Mix get?

Pit Bull Mastiff Mixes typically grow to be quite large, often weighing between 100 to 150 pounds, sometimes even more. They usually stand around 25 to 29 inches tall at the shoulder. Their size largely depends on the size and genetics of their Mastiff and Pit Bull parents.

Are Pit Bull Mastiff Mixes good family pets?

Yes, Pit Bull Mastiff Mixes can be excellent family pets. They are known for being affectionate, loyal, and protective of their family members. However, due to their size and strength, they should be supervised around small children. Proper training and socialization from a young age are crucial to ensure they are well-behaved and gentle.

How much exercise does a Pit Bull Mastiff Mix need?

Pit Bull Mastiff Mixes are relatively active and require regular exercise to maintain their health and happiness. They benefit from daily walks, playtime, and mental stimulation. Due to their size, they need ample space to move around. However, they are not as high-energy as some other breeds and are often content with moderate exercise.

What are common health issues in Pit Bull Mastiff Mixes?

Common health issues in Pit Bull Mastiff Mixes include hip and elbow dysplasia, cardiac issues, bloat, skin allergies, obesity, hypothyroidism, cataracts, cancer, joint problems, and ear infections. Regular veterinary check-ups and a healthy lifestyle can help manage and prevent some of these issues.

What is the lifespan of a Pit Bull Mastiff Mix?

The average lifespan of a Pit Bull Mastiff Mix is around 8 to 12 years. This can vary depending on various factors, including genetics, overall health, and the level of care they receive throughout their life.

How do I properly care for a Pit Bull Mastiff Mix?

Proper care for a Pit Bull Mastiff Mix includes regular veterinary check-ups, a balanced diet suitable for large breeds, regular exercise, and mental stimulation. They also require basic grooming, such as regular brushing, nail trimming, and ear cleaning. Training and socialization are essential from a young age to ensure they are well-behaved and sociable.

Takeaway for Pit Bull Mastiff Mix Owners

The Pit Bull Mastiff Mix is the perfect breed if you want a guard dog and have experience in training and caring for dogs. They make an excellent companion and protector of the home.

Nevertheless, these large dogs need space to roam and play, so they may not be suited to living in apartments.

In addition to space, this breed needs a lot of time and attention, and their feeding requirements are extensive. Hence, be prepared to buy good-quality, raw meat diets with high-protein content.

This breed can be well-suited to homes with younger children provided they are socialized with them from a puppy stage. Better large breeds for younger children are Labrador retrievers.

Let us know what you think of this giant crossbreed below.

Other American Pit Bull Terrier and Mastiff Mix Breeds

If you’re interested in learning about other American Pit Bull Terrier mixes or mastiff mixes, check out the hybrid dog breeds below.

Other American Pit Bull Terrier Mixes

Other Mastiff Mixes

About John Woods 299 Articles
John Woods is the founder of All Things Dogs, member of the Association of Professional Dog Trainers, graduate in Animal Behavior & Welfare and recognized author by the Dog Writers Association of America.


  1. I have one. He is my emotional support dog. Such a sweet docile nature. Loves kids, other dogs & cats. He’s grey merle & incredibly beautiful! Excellent breeds to cross.

  2. I have one that is I am not sure what to call him but a Husky/Pitbull Mastiff cross. He looks like a pit but acts like a Husky and he is huge at 6 months he was larger than the pits I had before and they were big. He was 80 lbs about last check at 7 months. He does not just have a chewing problem he swallows anything he comes across from the moment he came home. This cost a fortune since he had to have an obstruction removed (a harness, buckle, kong toy, string and rocks) at four months. Good with kids, loves everyone especially kids and just wants to play but he is so big. He just learned how to step up onto the bed but he does not like to jump.

  3. We have a Pitbull/Mastiff mix with a dark grey coat with white stockings, white chest and white on his face. He has blue eyes and is so loving. At night he goes to everyone’s room and visits before he goes to bed. He is on target to weigh at least 100 lbs as he is six months old and weighs 60 lbs (he gains 10 pounds a month). My only problem is he is very challenged in the house training.

  4. I was always around pitties when given this little pit pup who lost his mother. I fell in l[love with him immediately he’s so expressive I didn’t realise he was a pit mastiff mix quickly realised it when he was like Clifford the big red dog and just kept growing and getting bigger he has now become our child and true to that he’s a demanding spoiled brat that I say that with a huge smile and love swelling my heart great breed wouldn’t trade him for the world! And true to their breed and a great surprise to me. While out side I was attacked by another human out of no where came my baby ( 150 lbs and almost 6 ft on his back legs I am 5’3″ and 119 lbs) he grabbed this person off me and subdued them until help arrived. I’ve never trained him to be aggressive only raised with love… he is my best friend and he saved my life in more way than just with my attacker. Thanks for listening to me gush about him . BTW his name is Elvis looks identical to the one pictured mine has brindle. His name is Elvis but I call him boo boo kitty super shut ( he lives it ,) and when calling him from a distance I yell bubble butt and he loves that even more. He won’t come to his daddy if dad just yells for elvis.. OK I’ll stop lol thanks.

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