Muscular dystrophy is a fairly rare, progressive, degenerative genetic muscle disorder involving an abnormality in certain muscle proteins, called cytoskeletal proteins, which are critical to coordinated movement. In veterinary medicine, the most common types of muscular dystrophy are Becker’s muscular dystrophy (BMD), autosomal recessive muscular dystrophy (ARMD), and canine X-linked muscular dystrophy (CXMD). BMD is a mild form of the disease reported in the Japanese Spitz. ARMD, formerly called Type 2 muscle fiber deficiency, is prevalent in Labrador Retrievers. Canine X-linked muscular dystrophy, also called Golden Retriever muscular dystrophy, is the most common and severe form of this disease. Dogs with CXMD don’t have enough cytoskeletal dystrophin, which is necessary to sustain muscle function. CXMD mainly affects young male dogs. They have difficulty nursing, stunted growth, problems picking up and swallowing food, drool excessively, are intolerant of exercise and have stiff muscles and muscle tremors. This serious disease rarely stays static for long.