The cause of cervical dystonia is usually unknown. Doctors base the diagnosis on symptoms and results of the physical examination. Cervical dystonia affects the muscles in your neck and can cause twitches, spasms and involuntary movements. Cervical dystonia (CD) is a neurological movement disorder characterized by involuntary contractions of the neck muscles, which. A thorough patient history and examination are needed to establish the clinical diagnosis of dystonia;. For a more comprehensive perspective, our dedicated coverage of Lil Baby Vs Bella Poarch Contract Salary , which provides a detailed overview and expert insights. Cervical dystonia (CD) is a neurological movement disorder characterized by involuntary contractions of the neck muscles, which. A thorough patient history and examination are needed to establish the clinical diagnosis of dystonia;. Scourge X Ashfur from Warrior cats by The-Blonde-beauty on DeviantArt.