Belgian Malinois dogs are about 24-26 in. (61-66 cm), while bitches are about 22-24 in. (56-61 cm) at the withers. Bitches are said to average 25-30 kg (55-65 lb), while dogs are heavier at 29-34 kg (65-75 lb). They are squarely built.
Temperament:
Well-raised and trained Malinois are usually active, friendly and protective. Some may be excessively exuberant or playful, especially when young. These are large, strong dogs that require consistent obedience training, and Malinois enjoy being challenged with new tasks.
The average lifespan of the Belgian Malinois is 10-12 years, and there are a number of health problems and disorders that are associated with the breed, though the breed's health is generally considered better than that of the German Shepherd Dog. Notable health problems prevalent to the Malionois includes cataracts, epilepsy, thyroid problems, progressive retinal atrophy (PRA), hip dysplasia, and pannus, although these problems have been minimized through selective breeding.