häälepuudulikkus
Häälepuudulikkus, or dysphonia, refers to any abnormality in the voice that affects its quality, pitch, loudness, or clarity. It is a symptom, not a disease itself, and can be caused by a variety of underlying conditions affecting the vocal cords or the laryngeal function.
Common causes of häälepuudulikkus include vocal cord overuse or misuse, such as yelling or prolonged speaking,
Symptoms of häälepuudulikkus can range from mild hoarseness or breathiness to a complete loss of voice (aphonia).