The left RLN is thought to be more prone to injury because of the longer route. Rarely are both <span style = 'background-color: #dae8f4'>vocal</span> cords
affected simultaneously, producing bilateral vocal
cord paralysis/paresis (BVCP). The most common cause of bilateral vocal
cord paralysis is surgical injury during thyroid surgery and neoplasm.[1 and 2] Less common causes include congenital anomalies, infection
, trauma, and neurologic disorders.