http://www.mastiffmixed.com/mastiff-care/hip-dysplasia-in-mastiff-dogs-and-glyco-flex.html
Dog Hip Dysplasia is the inability of the hip joints to develop normally, the hip joints are malformed and deteriorate thus leading to loss of function in the hip joints and pains. Dog Hip Dysplasia normally happens in large breed dogs such as mastiff and cane corso breeds.
