What are the signs and symptoms of vocal cord paralysis? list is not exhaustive, and inclusion does not imply endorsement of the organization or the content of. Recurrent laryngeal nerve paralysis is the medical term describing an injury to one or both Contents. [hide]. 1 Definition and classification; 2 Symptoms; 3 Causes. Congenital causes; Infectious causes; Traumatic causes. Contents of this article: Symptoms, risk factors and causes of vocal cord paralysis ; Diagnosis and treatment of vocal cord paralysis. Fast facts on.