Vocal tremors and spasms are conditions that affect the muscles of the larynx, commonly known as the voice box. These involuntary movements can cause the voice to shake, quiver, or seize up, disrupting normal speech patterns and making communication challenging, with a heavy impact on life quality.
What causes vocal tremors or spasms?
Vocal tremors or spasms are often symptomatic of underlying neurological conditions. Essential voice tremor, a subtype of essential tremor, is one of the most common causes, stemming from involuntary muscle contractions that lead to rhythmic shaking of the larynx. Similarly, spasmodic dysphonia, a rare disorder affecting the brain’s control of the voice muscles, can cause spasms that disrupt normal speech.
These conditions may be idiopathic (no discernible cause), or they can be linked to degenerative diseases like Parkinson’s disease or multiple sclerosis. Genetic predispositions, as well as exposure to certain medications or toxins, are also considered potential contributors. Stress, anxiety, and fatigue can exacerbate these tremors, though they do not directly cause the condition. Proper diagnosis by a specialist is essential for determining the specific cause and subsequent treatment options.