Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Segawa dystonia
Medically reviewed by Min Clinic Staff | Updated: January 2026
Segawa Dystonia: An important variant form of dopa-responsive dystonia (DRD).
DRD typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, with spasticity. DRD, by definition, can be successfully treated with dopa.
In Segawa dystonia, the symptoms fluctuate during the day from relative mobility in the morning to increasingly worse disability in the afternoon and evening and after exercise.