Dystonia is a movement disorder characterized by involuntary muscle contractions, leading to twisting, repetitive movements, or abnormal postures. It can affect any part of the body, including the neck, hands, or face, and may be triggered by various factors, including genetics, brain injury, or certain medications. Dystonia can be focal (affecting a specific area) or generalized (affecting multiple areas), and its severity can vary widely among individuals. Treatment options often include medications, physical therapy, and in some cases, surgical interventions.