<prompt> The most common cause of vocal cord palsy is:Total thyroidectomyBronchogenic carcinomaAneurysm of aoaTubercular lymph nodes  <response>: Thyroidectomy was the single most common surgical cause for unilateral vocal cord palsy, followed by other nonthyroid neck surgeries 20 and anterior cervical decompression 18.3. Conclusion: The most common cause for unilatera lvocal cord palsy is idiopathic. 