Hip dysplasia affects around 15% of the dog population. This disease is caused by a deformity of the hip during growth. The ball and socket joint of the hip are not growing at equal rates during puppyhood, which causes them to roughly rub rather than smoothly function together.
Legg-Perthes, also commonly named Legg-Calve-Perthes, Coxa Plana, and Aseptic or Avascular Necrosis of the femoral head is a disease that causes lameness in the hip-joint in small dog breeds ranging from five-months old to one-year of age.
As our dogs get older, they become more prone to more health problems and conditions than when they were young pups. There are many causes of hind leg weakness in dogs and the exact cause is hard to discover, even for vets.
The history of the Bernese Mountain Dog is that it was a farm dog of the midland regions of Switzerland. They were primary used as a companion and watchdog to farmers and their families. These beautiful-looking Swiss farm dogs takes his name from the area of Bern, where he likely originated.