The sudden deafness refers to a total or partial loss of hearing that occurs suddenly, usually in a few hours or days. This form of deafness can be caused by several factors, including viral or bacterial infection, acoustic trauma, vascular problems, autoimmune diseases or side effects of certain medicines. The sudden deafness can be temporary or permanent, and its severity can vary from mild to severe. People with sudden deafness can use hearing aids, cochlear implants or other assistive devices hearing to improve their hearing ability, and they may require the assistance of specialists, audiologists and medical rehabilitation to manage their condition and improve their quality of life. The sudden deafness requires careful medical evaluation and early treatment to maximise the chances of recovery of hearing.