Aphonia is defined as the inability to produce voiced sound. This may result from damage, such as surgery (e.g., thyroidectomy) or a tumor, or can be a result of psychological means.
Aphonia means "no sound.” In other words, a person with this disorder has lost their voice and is unable to communicate vocally.
Causes
Injuries are often the cause of aphonia. Minor injuries can affect the second and third dorsal area in such a manner that the lymph patches concerned with coordination become either atrophic or relatively nonfunctioning. Tracheotomy can also cause aphonia.