what is fshd
Facioscapulohumeral muscular dystrophy (FSHD) is the third most common type of muscular dystrophy worldwide. The prevalence of the disease is estimated at about one in 20,000. The name of the disease relates to the areas of the body that are most affected early on in the disease: the face (facio), the shoulder blade (scapula) and the upper arm (humeral). As the disease progresses it can also affect the legs.