1, hoarse voice is what? The larynx is the vocal organ, normal people vocal, first inhale air, the vocal cords inward, tighten, and control the whistle, the airflow from the lungs whistle impulse close to the vocal cords to make it vibrate that sound. The non-periodic vibration of the vocal folds is clinically manifested as hoarseness, which is caused by the increased thickening and stiffness of the vocal folds due to various reasons, and the increased gap between the closing phase of the vocal folds. 2.What causes hoarseness? (1) congenital dysphonia congenital laryngeal webbing, vocal fold dysplasia; (2) inflammation acute and chronic bacterial laryngitis, laryngeal diphtheria special infection, reflux laryngitis; (3) vocal abuse improper use of voice caused by vocal fold nodules, vocal fold polyps, Renk edema, etc.; (4) tumor: benign tumor hoarseness develops slowly, malignant tumor hoarseness can be progressively aggravated in a short period of time, and finally complete loss of voice; (5) Trauma; (6) vocal cord paralysis caused by various causes of central nervous system, peripheral nervous system or myogenic disorders; (7) hysterical hoarseness; (8) other. 3.Does hoarseness need treatment? Since the early symptoms of vocal cord cancer patients are voice changes and no other discomfort, they are often not taken seriously and are often mistaken as “cold” or “laryngitis”. Therefore, those who are over 40 years old, with hoarseness lasting for more than 2 weeks and not improved by vocal rest and general treatment must be seen by a hospital for careful laryngoscopy.