There are several clinical causes for hearing loss: First, traumatic swelling of the auricle and ear canal after trauma, which may block the external ear canal and cause hearing loss, and the more common cause is traumatic tympanic membrane perforation due to trauma, which is also called conductive deafness in clinical practice. Second, if too violent and strong, temporal bone fracture may occur, which leads to hearing loss due to laceration of the external auditory canal and tympanic membrane, and temporal bone fracture may lead to damage of the auditory nerve, causing sensorineural deafness.