Muscle weakening and atrophy are symptoms of facioscapulohumeral muscular dystrophy (atrophy). The most commonly affected muscles are those of the face (facial), around the shoulder blades (scapula),  and in the upper arms (humeral). The onset and severity of the illness vary greatly. Milder instances may not show symptoms until later in life, although uncommon severe cases show symptoms as early as infancy or youth. Genetic abnormalities involving the q arm of chromosome 4 cause facioscapulohumeral muscular dystrophy.

Question - Symptoms of facioscapulohumeral muscular dystrophy (FSHD) usually develop during the ________ of life but can occur any time between infancy to late adulthood. Third decade First decade Second decade Both A and C To know the correct answer click here! This question is from the Editorial team of Docplexus and is meant for educational purposes only. Source:…