Tight ears and fear of sound may be caused by autonomic dysfunction and auditory hypersensitivity. 1. Autonomic nerve dysfunction: when the patient does not have enough sleep, mental stress or overwork, etc., the autonomic nerve dysfunction will occur, and the patient may have the feeling of ear tightness and fear of sound. 2. Auditory allergy: it may lead to a decrease in the patient’s tolerance of sound loudness, and abnormal sensitivity to sound stimulation, so even if it is a small sound, the patient may have a tightening of the ears and fear of sound. When the patient has the phenomenon of ear tightness and fear of sound, it is recommended to seek medical treatment in time, diagnosed by a professional doctor and given reasonable treatment.