Skip to Content


MDS makes every effort to publish accurate information on the website. "Google Translate" is provided as a free tool for visitors to read content in one's native language. Translations are not guaranteed to be 100% accurate. Neither MDS nor its employees assume liability for erroneous translations of website content.

International Parkinson and Movement Disorder Society
Main Content

Global Dystonia Severity Rating Scale (GDS)


Global Dystonia Severity Rating Scale (GDS)

Acronym: GDS

Authors: Cynthia L. Comella, Sue Leurgans, Joanne Wuu, Glenn T. Stebbins, Teresa Chmura and Members of The Dystonia Study Group

The Global Dystonia Severity Rating Scale (GDS) serves as an instrument to assess dystonia severity. The GDS is a global scale applied to 10 body regions: eyes and upper face, lower face, jaw and tongue, larynx, neck, shoulder and proximal arm (left and right), distal arm and elbow (left and right), proximal leg and pelvis (left and right), distal leg and foot (left and right) and trunk.

Original PublicationView the Scale (PDF)

To request permission to use this Rating Scale, please fill out a Permission Request Form.

Year Published: 2003

Scale Last Updated: December 7, 2018

Assessment Type: ClinRO

Estimated Time to Complete: 15-20 minutes

Available Translations: None

Additional Scale Publications:
Albanese A, Sorbo FD, Comella C, Jinnah HA, Mink JW, Post B, Vidailhet M, Volkmann J, Warner TT, Leentjens AF, Martinez‐Martin P, Stebbins GT Goetz CG and Schrag A. Dystonia rating scales: Critique and recommendations. Movement Disorders. 2013 July; 28 (7) 874-883.





We use cookies to give you the best possible experience with our website. These cookies are also used to ensure we show you content that is relevant to you. If you continue without changing your settings, you are agreeing to our use of cookies to improve your user experience. You can click the cookie settings link on our website to change your cookie settings at any time. Note: The MDS site uses related multiple domains, including and This cookie policy only covers the primary and domain. Please refer to the MDS Privacy Policy for information on how to configure cookies for all other domains on the MDS site.
Cookie PolicyPrivacy Notice