Neurological conditions resulting in abnormal voluntary or involuntary movement, which may impact the speed, fluency, quality and ease of movement.

Movement disorders are neurologic conditions that cause problems with movement, such as: Increased movement that can be voluntary (intentional) or involuntary (unintended); Decreased or slow voluntary movement. There are many different movement disorders. Some of the more common types include: Ataxia, the loss of muscle coordination; Dystonia, in which involuntary contractions of your muscles cause twisting and repetitive movements. The movements can be painful.; Huntington's disease, an inherited disease that causes nerve cells in certain parts of the brain to waste away. This includes the nerve cells that help to control voluntary movement.; Parkinson's disease, which is disorder that slowly gets worse over time. It causes tremors, slowness of movement, and trouble walking.; Tourette syndrome, a condition which causes people to make sudden twitches, movements, or sounds (tics); Tremor and essential tremor, which cause involuntary trembling or shaking movements. The movements may be in one or more parts of your body. Causes of movement disorders include: Genetics; Infections; Medicines; Damage to the brain, spinal cord, or peripheral nerves; Metabolic disorders; Stroke and vascular diseases; Toxins. Treatment varies by disorder. Medicines can cure some disorders. Others get better when an underlying disease is treated. Often, however, there is no cure. In that case, the goal of treatment is to improve symptoms and relieve pain.

Syndromes which feature DYSKINESIAS as a cardinal manifestation of the disease process. Included in this category are degenerative, hereditary, post-infectious, medication-induced, post-inflammatory, and post-traumatic conditions.

(abnormality of movement) An abnormality of movement with a neurological basis characterized by changes in coordination and speed of voluntary movements.

Every body movement, from raising a hand to smiling, involves a complex interaction between the central nervous system (brain and spinal cord), nerves, and muscles. Damage to or malfunction of any of these components may result in a movement disorder.

The term "movement disorders" refers to a group of nervous system (neurological) conditions that cause abnormal increased movements, which may be voluntary or involuntary. Movement disorders can also cause reduced or slow movements.