Mastiffs suffer from an average number of hereditary health problems. They can suffer from eye problems that can cause blindness. Eye problems can include cataracts, retinal dysplasia with detachment, and glaucoma. Mastiffs can suffer from bone diseases such as hip dysplasia, elbow dysplasia, and osteochondritis dissecans (OCD) of the shoulders, knees, elbows, or hocks. Because of these possible health problems, it is better to buy a pup from a reputable breeder or Mastiff rescue organization than a pet shop, middleman, or backyard breeder. It is very important to have a quality breeder that will show proof that their puppies have been looked at by a veterinarian and have been certified against having these hereditary health problems.
Exercise Requirements
Mastiffs are, by nature, couch potatoes. Mastiffs need a moderate amount of exercise to keep them fit, trim, and healthy. A Mastiff that is under the age of 2 should not be over exercised because their skeleton is still growing and it could cause inflamed joints or bone structure problems.
Training
When training, keep in mind that rough handling can permanently traumatize a Mastiff. Hitting and hurting your Mastiff is never acceptable and could cause your dog to become very aggressive.
Mastiffs go through phases of stubbornness but are normally very smart and eager to please. It is best to make training time a game. Use a happy and excited voice when training your Mastiff. Practice training on a regular basis and be consistent and firm when giving commands. Mastiffs have very sensitive feelings and seldom need more than a strong correction and a firm voice to change an undesirable behavior. To find obedience and socialization classes contact a local kennel club or your veterinarian.