What does spasmodic dysphonia refer to?
Spasmodic dysphonia (SD) is a chronic disorder of voice. It occurs in all age groups. If a person has SD, his vocal cords will vibrate uncontrollably, leading to hoarse voice.
There are several types of spasmodic dysphonia:
- Abductor SD
- Adductor SD
- Mixed SD
The exact cause of the disease remains unknown. Often, a nervous system disorder can trigger SD. What’s more, there is no cure for SD; however, several treatments can relieve the symptoms.
Key word: spasmodic dysphonia