Sore throat can not come out of the voice may be acute inflammation of the larynx, chronic inflammation of the larynx, acute infectious diseases, laryngeal trauma, laryngeal tumors, vocal cord paralysis and other diseases caused by acute infectious diseases can only be contagious, most of the other diseases are not contagious. 1. Acute inflammation of the larynx: acute laryngitis, laryngeal abscess, laryngeal edema and other acute inflammation in the larynx, is a common cause of sore throats can not send out the voice, this kind of disease is generally not contagious. 2. chronic inflammation of the larynx: sore throat can not come out of the voice may also be chronic simple laryngitis, atrophic laryngitis and other chronic inflammatory diseases, this kind of disease is not infectious. 3. Acute infectious diseases: Scarlet fever, measles, typhoid fever, influenza and other acute infectious diseases can cause a sore throat and can be contagious. 4. Laryngeal trauma: trauma to the laryngeal tissues leads to the destruction of the laryngeal structure, which can also lead to the symptoms of sore throat, and this kind of disease is not contagious. 5. Laryngeal tumor: the sore throat may be caused by the presence of laryngeal tumors, such as laryngeal cancer, laryngeal papilloma, etc., which is not contagious. 6. Vocal cord paralysis: a sore throat may be caused by traumatic brain injury, brain tumors and other causes of laryngeal nerve damage, which is not contagious. Diseases that can cause a sore throat are very complex and diverse, and whether or not they are contagious depends on whether or not the primary disease is contagious. Individuals with unexplained sore throats are advised to seek prompt medical attention.