Laryngeal cartilage dysplasia does not cause vocal cord paralysis. Common causes of vocal cord paralysis include nerve damage and compression by a mass. Laryngeal cartilage refers to the thyroid, cricoid, and epiglottis cartilages of the larynx, which play a supporting role in the larynx. It can be caused by vitamin D and calcium deficiencies in the fetus and infancy. Patients often present with laryngeal ringing and hoarseness. Vocal cord paralysis is mainly caused by lesions of the nerves governing the movement of the vocal cords or compression by tumors, such as damage to the superior laryngeal nerve and thyroid tumors compressing the recurrent laryngeal nerve can cause vocal cord paralysis. If you suffer from vocal cord paralysis, you should go to the hospital in time and receive standardized treatment under the guidance of professional doctors.