Print friendly version
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.
On this page
The cause of this disorder is unknown. It is theorized that an autoimmune reaction (reactions caused by an immune response against the body's own tissues) or a viral infection of the skeletal muscle may cause the disease. In addition, some doctors think certain people may have a genetic susceptibility to the disease.
Last updated: 8/26/2013
- Moskowitz RJ. Dermatomyositis. MedlinePlus. February 2011; http://www.nlm.nih.gov/medlineplus/ency/article/000839.htm. Accessed 8/26/2013.
- Dermatomyositis. MayoClinic.com. July 2011; http://www.mayoclinic.com/print/dermatomyositis/DS00335/DSECTION=all&METHOD=print. Accessed 8/26/2013.