In some cases, spasmodic dysphonia may run in families and is thought to be inherited. Research has identified a possible gene on chromosome 9 (9q32-34) that may contribute to the spasmodic dysphonia that is common to certain families. In some individuals the voice symptoms begin following an upper respiratory infection, injury to the larynx, a long period of voice use, or stress.
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Have any cases of spasmodic dysphonia been documented as having partially reversed spontaneously (i.e., non-medically and non-surgically)? I have spasmodic dysphonia and have experienced a dramatic and spontaneous improvement of my symptoms. Is there a medical explanation for this? See answer
My mother has spasmodic dysphonia and I believe that I may have it too. How is this condition diagnosed? Is genetic testing available for this condition? See answer