Sudden deafness, with active treatment tinnitus symptoms can disappear, or permanent tinnitus can occur. Sudden deafness refers to sudden, unexplained sensorineural hearing loss, which may be accompanied by tinnitus or vertigo, and some people have a tendency to recover spontaneously. Sudden hearing loss and tinnitus are often the first symptoms. When sudden deafness occurs, there is sudden tinnitus on one side or both sides of the ear, with a high pitch. After treatment, the symptoms of tinnitus of the flat drop type or low-frequency drop type can be gradually recovered, but the effect of the high-frequency drop type is poor after treatment, and the tinnitus may not disappear for a long time, leaving permanent tinnitus. When sudden deafness occurs, it is necessary to check for stroke, acoustic neuroma, hereditary deafness, etc. Sudden deafness should be treated as an otological emergency, detected and treated as early as possible, and waiting for self-healing is not recommended.