Vocal cord paralysis

Vocal cord paralysis occurs when one or both of the vocal cords (also called vocal folds) cannot move properly due to nerve damage. This affects their ability to open and close during breathing and speech. When the cords don't work as they should, it can cause hoarseness, a weak voice, difficulty swallowing, or breathing problems. The paralysis may result from nerve injury during surgery, stroke, or other conditions affecting the nervous system. Sometimes, the cause is unknown. Treatment options include voice therapy, medication, or surgery to improve voice quality and breathing.