Vocal fold paresis means one or both vocal cords are weakened but not completely paralyzed. The folds still move, but not with full strength or coordination. This may be caused by viral infections, minor surgical injuries, inflammation, or may occur without a clear cause. When only one side is affected (unilateral), patients may notice a breathy, weak, or unstable voice, vocal fatigue, and sometimes a sensation of tightness or burning in the throat. When both sides are affected (bilateral), which is rare, patients may have a weak or effortful voice and difficulty breathing when active.

Diagnosis involves a laryngoscopic exam and sometimes electromyography (EMG) to assess nerve function. Many cases improve with time and voice therapy alone. In more persistent cases, we offer in-office Restylane vocal fold injections to help the folds close more efficiently. For more significant or long-standing paresis, surgery can help reposition the fold for better vocal closure. Fat injection into the vocal folds can also help with the voice. Recovery depends on the severity of the condition and typically involves follow-up voice therapy to reduce strain and rebuild healthy vocal patterns.

To read more, visit our page What is Paresis.