Jerky body movement is a condition in which a person makes fast movements that they cannot control and that have no purpose. These movements interrupt the person's normal movement or posture.
The medical name of this condition is chorea.
Chorea; Muscle - jerky movements (uncontrolled); Hyperkinetic movements
This condition can affect one or both sides of the body. Typical movements of chorea include:
These movements do not usually repeat. They can look like they are being done on purpose. But the movements are not under the person's control. A person with chorea may look jittery or restless.
Chorea can be a painful condition, making it hard to do daily living activities.
There are many possible causes of unpredictable, jerky movements, including:
Treatment is aimed at the cause of the movements.
Excitement and fatigue can make chorea worse. Rest helps improve chorea. Try to reduce emotional stress.
Safety measures should also be taken to prevent injury from the involuntary movements.
Call your health care provider if you have unexplained body motions that are unpredictable and do not go away.
The provider will perform a physical exam. This may include a detailed examination of the nervous and muscle systems.
You'll be asked about your medical history and symptoms, including:
Tests that may be ordered include:
Treatment is based on the type of chorea the person has. If medicines are used, the provider will decide which medicine to prescribe based on the person's symptoms and test results.
Published Date: January 28, 2021
Published By: Evelyn O. Berman, MD, Assistant Professor of Neurology and Pediatrics at University of Rochester, Rochester, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Jankovic J, Lang AE. Diagnosis and assessment of Parkinson disease and other movement disorders. In: Jankovic J, Mazziotta JC, Pomeroy SL, Newman NJ, eds. Bradley and Daroff's Neurology in Clinical Practice. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 24.
Okun MS, Lang AE. Other movement disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 382.